Supporting Information fortrans-2-butene B3LYP/6-311++G(d,p) optimized geometry (Å). E =...

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Supporting Information for:

Carboberyllation: addition of organoberyllium species to alkenes and

alkynes. A comparison with carboboration. Terri E. Field-Theodore, Shannon A. Couchman, David J. D. Wilson* and Jason L.

Dutton*

*david.wilson@latrobe.edu.au, j.dutton@latrobe.edu.au

Department of Chemistry and Physics, La Trobe Institute for Molecular Sciences, La Trobe University, Melbourne,

Victoria, Australia, 3086

Table of Contents

Table S1. Figures of optimized geometries alkene, alkyne and beryllium species reactants ............................................4

Table S2. Figures of optimized geometries 1,1-Be-Me2 transition states and products .....................................................5

Table S3. Figures of optimized geometries 1,1-Be-Et2 transition states and products ......................................................6

Table S4. Figures of optimized geometries 1,1-Be-Ph2 transition states and products .....................................................7

Table S5. Figures of optimized geometries 1,1-B(C6F5)3 transition states, adduct and products.....................................9

Table S6. Figures of optimized geometries 1,1-Be(C6F5)2 transition states and products...............................................10

Table S7. Figures of optimized geometries 1,2-Be-Me2 transition states and products ...................................................11

Table S8. Figures of optimized geometries 1,2-Be-Et2 transition states and products ....................................................12

Table S9. Figures of optimized geometries 1,2-Be-Ph2 transition states and products ...................................................13

Table S10. Figures of optimized geometries 1,2-B(C6F5)3 transition states and products...............................................15

Table S11. Figures of optimized geometries 1,2-Be(C6F5)2 transition states and products.............................................16

Cartesian coordinates for trans-2-butene and 2-butyne......................................................................................................17

Cartesian coordinates for E-stilbene and diphenylacetylene..............................................................................................18

Cartesian coordinates for phenylacetylene and dimethylberyllium ..................................................................................19

Cartesian coordinates for diethylberyllium and diphenylbeyllium ...................................................................................20

Cartesian coordinates for bispentafluorophenyl beryllium and tris(pentafluorophenyl)borane ...................................21

Cartesian coordinates for BeMe2 products

(1,1)-2-butyne and (1,2)-2-butyne...............................................................................................................................22

(1,1)-diphenylacetylene and (1,2)-diphenylacetylene .................................................................................................23

Cartesian coordinates for BeEt2 products

(1,1)-trans-2-butene and (1,2)-trans-2-butene ............................................................................................................24

S1

Electronic Supplementary Material (ESI) for Dalton Transactions.This journal is © The Royal Society of Chemistry 2017

(1,1)-2-butyne and (1,2)-2-butyne...............................................................................................................................25

(1,1)-E-stilbene and (1,2)-E-stilbene ...........................................................................................................................26

(1,1)-diphenylacetylene and (1,2)-diphenylacetylene .................................................................................................27

Cartesian coordinates for BePh2 products

(1,1)-trans-2-butene and (1,2)-trans-2-butene ............................................................................................................28

(1,1)-2-butyne and (1,2)-2-butyne...............................................................................................................................29

(1,1)-E-stilbene and (1,2)-E-stilbene ...........................................................................................................................30

(1,1)-diphenylacetylene and (1,2)-diphenylacetylene .................................................................................................31

(1,1)-phenylacetylene and (1,2)-phenylacetylene .......................................................................................................32

Cartesian coordinates for B(C6F5)3 products

(1,1)-2-butyne and (1,2)-2-butyne...............................................................................................................................33

(1,1)-phenylacetylene and (1,2)-phenylacetylene .......................................................................................................34

(1,1)-phenylacetylene adduct ......................................................................................................................................35

Cartesian coordinates for Be(C6F5)2 products

(1,1)-2-butyne and (1,2)-2-butyne...............................................................................................................................36

(1,1)-diphenylacetylene and (1,2)-diphenylacetylene .................................................................................................37

Cartesian coordinates for BeMe2 transition states

(1,1)-2-butyne and (1,2)-2-butyne...............................................................................................................................38

(1,1)-diphenylacetylene and (1,2)-diphenylacetylene .................................................................................................39

Cartesian coordinates for BeEt2 transition states

(1,1)-trans-2-butene and (1,2)-trans-2-butene ............................................................................................................40

(1,1)-2-butyne and (1,2)-2-butyne...............................................................................................................................41

(1,1)-E-stilbene and (1,2)-E-stilbene ...........................................................................................................................42

(1,1)-diphenylacetylene and (1,2)-diphenylacetylene .................................................................................................44

Cartesian coordinates for BePh2 transition states

(1,1)-trans-2-butene and (1,2)-trans-2-butene ............................................................................................................44

(1,1)-2-butyne and (1,2)-2-butyne ..............................................................................................................................45

(1,1)-E-stilbene and (1,2)-E-stilbene ...........................................................................................................................46

(1,1)-diphenylacetylene and (1,2)-diphenylacetylene .................................................................................................47

(1,1)-phenylacetylene and (1,2)-phenylacetylene .......................................................................................................48

Cartesian coordinates for B(C6F5)3 transition states

(1,1)-2-butyne and (1,2)-2-butyne...............................................................................................................................49

(1,1)-phenylacetylene and (1,2)-phenylacetylene .......................................................................................................50

Cartesian coordinates for Be(C6F5)2 transition states

(1,1)-2-butyne and (1,2)-2-butyne...............................................................................................................................51

(1,1)-diphenylacetylene and (1,2)-diphenylacetylene .................................................................................................52

Cartesian coordinates for diethylmagnesium and diphenylmagnesium............................................................................53

Cartesian coordinates for MgEt2 products

(1,1)-trans-2-butene and (1,2)-trans-2-butene ............................................................................................................54

S2

(1,1)-2-butyne and (1,2)-2-butyne...............................................................................................................................55

(1,1)-E-stilbene and (1,2)-E-stilbene ...........................................................................................................................56

(1,1)-diphenylacetylene and (1,2)-diphenylacetylene .................................................................................................57

Cartesian coordinates for MgPh2 products

(1,1)-trans-2-butene and (1,2)-trans-2-butene ............................................................................................................58

(1,1)-2-butyne and (1,2)-2-butyne ..............................................................................................................................59

(1,1)-E-stilbene and (1,2)-E-stilbene ...........................................................................................................................60

(1,1)-diphenylacetylene and (1,2)-diphenylacetylene .................................................................................................61

Cartesian coordinates for MgEt2 transition states

(1,1)-trans-2-butene and (1,2)-trans-2-butene ............................................................................................................62

(1,1)-2-butyne and (1,2)-2-butyne...............................................................................................................................63

(1,1)-E-stilbene and (1,2)-E-stilbene ...........................................................................................................................64

(1,1)-diphenylacetylene and (1,2)-diphenylacetylene .................................................................................................65

Cartesian coordinates for MgPh2 transition states

(1,1)-trans-2-butene and (1,2)-trans-2-butene ............................................................................................................66

(1,1)-2-butyne and (1,2)-2-butyne ..............................................................................................................................67

(1,1)-E-stilbene and (1,2)-E-stilbene ...........................................................................................................................68

(1,1)-diphenylacetylene and (1,2)-diphenylacetylene .................................................................................................69

S3

Table S1. B3LYP/6-311++G(d,p) optimized geometries of alkene, alkyne and beryllium species reactants.

Molecule trans-2-butene 2-butyne E-stilbene Diphenylacetylene

Reactant alkene/ alkyne

Molecule Phenylacetylene Molecule B(C6F5)3

Reactant alkene/ alkyne

Reactantboron species

Molecule Me-Be-Me Et-Be-Et Ph-Be-Ph C6F5-Be-C6F5

Reactantberyllium species

S4

Table S2. B3LYP/6-311++G(d,p) optimized geometries of 1,1-Be-Me2 transition states and products.

Molecule Transition State Product

1,1-Be-Me2 trans-2-butene

1,1-Be-Me2 diphenylacetylene

S5

Table S3. B3LYP/6-311++G(d,p) optimized geometries of 1,1-Be-Et2 transition states and products.

Molecule Transition State Product

1,1-Be-Et2 trans-2-butene

1,1-Be-Et2 2-butyne

1,1-Be-Et2 E-stilbene

1,1-Be-Et2 diphenylacetylene

S6

Table S4. B3LYP/6-311++G(d,p) optimized geometries of 1,1-Be-Ph2 transition states and products.

Molecule Transition State Product

1,1-Be-Ph2 trans-2-butene

1,1-Be-Ph2 2-butyne

1,1-Be-Ph2 E-stilbene

S7

Molecule Transition State Product

1,1-Be-Ph2 diphenylacetylene

1,1-Be-Ph2 phenylacetylene

S8

Table S5. B3LYP/6-311++G(d,p) optimized geometries of 1,1-B(C6F5)3 transition states and products.

Molecule Transition State Product

1,1-B(C6F5)32-butyne

Transition State Adduct Product

1,1-B(C6F5)3phenylacetylene

S9

Table S6. B3LYP/6-311++G(d,p) optimized geometries of 1,1-Be(C6F5)2 transition states and products.

Molecule Transition State Product

1,1-Be(C6F5)2 2-butyne

1,1-Be(C6F5)2 diphenylacetylene

S10

Table S7. B3LYP/6-311++G(d,p) optimized geometries of 1,2-Be-Me2 transition states and products.

Molecule Transition State Product

1,2-Be-Me2 trans-2-butene

1,2-Be-Me2 diphenylacetylene

S11

Table S8. B3LYP/6-311++G(d,p) optimized geometries of 1,2-Be-Et2 transition states and products.

Molecule Transition State Product

1,2-Be-Et2 trans-2-butene

1,2-Be-Et2 2-butyne

1,2-Be-Et2 E-stilbene

1,2-Be-Et2 diphenylacetylene

S12

Table S9. B3LYP/6-311++G(d,p) optimized geometries of 1,2-Be-Ph2 transition states and products.

Molecule Transition State Product

1,2-Be-Ph2 trans-2-butene

1,2-Be-Ph2 2-butyne

1,2-Be-Ph2E-stilbene

S13

Molecule Transition State Product

1,2-Be-Ph2 diphenylacetylene

1,2-Be-Ph2 phenylacetylene

S14

Table S10. B3LYP/6-311++G(d,p) optimized geometries of 1,2-B(C6F5)3 transition states and products.

Molecule Transition State Product

1,2-B(C6F5)32-butyne

1,2-B(C6F5)3phenylacetylene

S15

Table S11. B3LYP/6-311++G(d,p) optimized geometries of 1,2-Be(C6F5)2 transition states and products.

Molecule Transition State Product

1,2-Be(C6F5)2 2-butyne

1,2-Be(C6F5)2 diphenylacetylene

S16

Cartesian Coordinates

All geometries listed have been optimized at the B3LYP/6-

311++G(d,p) level of theory. Coordinates are enumerated in

angstroms, and all energies are expressed in Hartrees: SCF (E),

zero-point corrected (E0), thermally corrected (H) and Gibb’s

Free (G).

Reactants

trans-2-butene

B3LYP/6-311++G(d,p) optimized geometry (Å).

E = -157.274609473E0 = -157.167265H = -157.160833G = -157.194020

0 1C 0.324262 0.582339 -0.000001C -0.324262 -0.582339 -0.000001H 1.414297 0.571751 -0.000002H -1.414297 -0.571751 -0.000002C -0.324262 1.936254 0.000001H -0.025761 2.518835 0.878885H -0.025738 2.518850 -0.878866H -1.414344 1.857628 -0.000015C 0.324262 -1.936254 0.000001H 0.025738 -2.518850 -0.878866H 1.414344 -1.857628 -0.000015H 0.025761 -2.518835 0.878885

2-butyne

B3LYP/6-311++G(d,p) optimized geometry (Å).

E = -156.026849032E0 = -155.943067H = -155.936360G = -155.971854

0 1C -0.602113 0.001711 -0.001635C 0.602104 0.000845 -0.001228C 2.060752 -0.000570 0.000673H 2.455912 -0.863472 -0.543622H 2.458037 0.902108 -0.472948H 2.454247 -0.041907 1.020691C -2.060806 -0.000674 0.000721H -2.456046 -0.676137 -0.763872H -2.453236 -0.327092 0.968484H -2.458534 0.998627 -0.199922

S17

E-stilbene

B3LYP/6-311++G(d,p) optimized geometry (Å).

E = -540.846826232E0 = -540.632998H = -540.620706G = -540.672951

0 1C -0.497148 -0.453232 0.000092C 0.497148 0.453232 -0.000111H -0.241225 -1.509583 0.000276H 0.241225 1.509583 -0.000280C -1.938433 -0.186226 0.000104C -2.826575 -1.275608 0.000317C -2.491284 1.107814 -0.000086C -4.205717 -1.086557 0.000337H -2.424199 -2.283584 0.000467C -3.867219 1.297428 -0.000065H -1.841535 1.974981 -0.000252C -4.734099 0.202160 0.000146H -4.866842 -1.946096 0.000504H -4.268731 2.304862 -0.000216H -5.807321 0.354608 0.000164C 1.938433 0.186226 -0.000117C 2.826575 1.275608 -0.000202C 2.491284 -1.107814 -0.000046C 4.205717 1.086557 -0.000203H 2.424199 2.283584 -0.000265C 3.867219 -1.297428 -0.000047H 1.841535 -1.974981 0.000000C 4.734099 -0.202160 -0.000122H 4.866842 1.946096 -0.000265H 4.268731 -2.304862 0.000006H 5.807321 -0.354607 -0.000121

Diphenylacetylene

B3LYP/6-311++G(d,p) optimized geometry (Å).

E = -539.598841631E0 = -539.408181H = -539.396166G = -539.447304

0 1C -0.605459 -0.000029 -0.000040C 0.605459 -0.000010 -0.000035C 2.028782 -0.000004 -0.000007C 2.745864 -1.210908 0.004108C 2.745854 1.210906 -0.004093C 4.136050 -1.206283 0.004147H 2.200919 -2.147206 0.007349C 4.136040 1.206294 -0.004072H 2.200901 2.147199 -0.007357C 4.836749 0.000008 0.000052H 4.674929 -2.147122 0.007419H 4.674912 2.147137 -0.007321H 5.920757 0.000013 0.000076C -2.028782 -0.000015 -0.000029C -2.745844 1.210901 0.004080C -2.745874 -1.210912 -0.004123C -4.136030 1.206300 0.004104H -2.200883 2.147190 0.007326C -4.136060 -1.206278 -0.004116H -2.200937 -2.147214 -0.007382C -4.836749 0.000019 0.000002H -4.674894 2.147147 0.007371H -4.674947 -2.147112 -0.007371H -5.920756 0.000032 0.000016

S18

Phenylacetylene

B3LYP/6-311++G(d,p) optimized geometry (Å).

E = -308.477328812E0 = -308.368218H = -308.360842G = -308.398636

0 1C 2.021990 -0.000148 -0.000080C 3.227026 0.000088 -0.000143C 0.593813 -0.000069 -0.000021C -0.119198 1.210865 0.000019C -0.119324 -1.210928 -0.000006C -1.509909 1.206589 0.000080H 0.427015 2.146352 0.000006C -1.510034 -1.206505 0.000048H 0.426790 -2.146472 -0.000041C -2.209622 0.000079 0.000094H -2.048933 2.147232 0.000114H -2.049157 -2.147092 0.000059H -3.293668 0.000135 0.000139H 4.289503 0.000020 -0.000220

Me-Be-Me

B3LYP/6-311++G(d,p) optimized geometry (Å).

E = -94.6184970194E0 = -94.547253H = -94.540672G = -94.574977

0 1Be 0.00000000 0.00000000 0.00007000C 0.00000000 1.67885200 -0.00003800H 0.29744400 2.09404300 -0.97134000H 0.69237700 2.09391700 0.74337100C 0.00000000 -1.67885200 -0.00003800H -0.29744400 -2.09404300 -0.97134000H -0.69237700 -2.09391700 0.74337100H -0.99006400 2.09362100 0.22805900H 0.99006400 -2.09362100 0.22805900

S19

Et-Be-Et

B3LYP/6-311++G(d,p) optimized geometry (Å).

E = -173.252033859E0 = -173.122534H = -173.113625G = -173.155293

0 1Be 0.000000 0.000000 0.337030C 0.000000 1.687313 0.342871C -1.176479 2.383472 -0.383480H 0.948048 2.040070 -0.091254H 0.032893 2.034992 1.386713H -1.103767 3.475362 -0.335444H -1.216034 2.111437 -1.443099H -2.141791 2.107283 0.052680C 0.000000 -1.687313 0.342871C 1.176479 -2.383472 -0.383480H -0.948048 -2.040070 -0.091254H -0.032893 -2.034992 1.386713H 1.103767 -3.475362 -0.335444H 1.216034 -2.111437 -1.443099H 2.141791 -2.107283 0.052680

Ph-Be-Ph

B3LYP/6-311++G(d,p) optimized geometry (Å).

E = -478.175484707E0 = -477.993707H = -477.981957G = -478.032674

0 1Be 0.000000 0.000042 -0.000049C -1.675540 0.000067 0.000003C -2.417125 0.849219 -0.848770C -2.417037 -0.849152 0.848786C -3.811258 0.852915 -0.852518H -1.900104 1.525485 -1.524682C -3.811172 -0.852981 0.852547H -1.899948 -1.525360 1.524704C -4.511007 -0.000069 0.000015H -4.351770 1.518258 -1.517552H -4.351613 -1.518374 1.517589H -5.595742 -0.000124 0.000014C 1.675540 -0.000009 -0.000082C 2.417127 -0.849152 -0.848861C 2.417035 0.849141 0.848773C 3.811259 -0.852900 -0.852551H 1.900106 -1.525350 -1.524840C 3.811171 0.852905 0.852604H 1.899946 1.525342 1.524698C 4.511007 0.000005 0.000062H 4.351773 -1.518223 -1.517605H 4.351610 1.518236 1.517710H 5.595742 0.000005 0.000116

S20

(C6F5)-Be-(C6F5)

B3LYP/6-311++G(d,p) optimized geometry (Å).

E = -1470.81517774E0 = -1470.714115H = -1470.693582G = -1470.765138

0 1Be 0.000000 0.000062 0.000022C -1.677865 0.000028 0.000035C -2.414562 -0.834692 0.834931C -2.414562 0.834730 -0.834883C -3.801859 -0.853993 0.854213C -3.801857 0.854002 -0.854198C -4.494882 -0.000001 0.000003C 1.677864 0.000067 0.000047C 2.414502 -0.834964 -0.834594C 2.414622 0.835037 0.834640C 3.801796 -0.854320 -0.853933C 3.801920 0.854268 0.853884C 4.494882 -0.000057 -0.000044F 1.761226 1.670661 1.669889F 4.477582 1.669257 1.668513F 5.826047 -0.000111 -0.000087F 4.477335 -1.669368 -1.668604F 1.760969 -1.670531 -1.669801F -1.761100 -1.670002 1.670445F -4.477459 -1.668743 1.669131F -5.826047 -0.000020 -0.000019F -4.477458 1.668726 -1.669141F -1.761094 1.670032 -1.670403

B(C6F5)3

B3LYP/6-311++G(d,p) optimized geometry (Å).

E = -2208.92672205E0 = -2208.773681H = -2208.743849G = -2208.835788

0 1B -0.000261 -0.001237 -0.000933C -1.276750 -0.911885 0.000279C -1.360905 -2.080261 -0.766667C -2.408300 -0.609876 0.767644C -2.486726 -2.889801 -0.788826C -3.541360 -1.409181 0.789791C -3.581429 -2.553484 0.000330C -0.150498 1.559793 -0.000457C 0.674561 2.388735 0.769276C -1.118534 2.216714 -0.769542C 0.547800 3.769589 0.792077C -1.257934 3.596337 -0.790864C -0.421925 4.376302 0.000984C 1.427112 -0.650846 -0.001529C 1.734501 -1.777949 0.769967C 2.478565 -0.141097 -0.772787C 2.994627 -2.356649 0.793028C 3.743813 -0.708486 -0.794040C 4.003546 -1.820229 0.000207F -0.549621 5.699436 0.001737F -2.180968 4.180639 -1.557693F 1.342155 4.518644 1.559764F 1.619841 1.852088 1.558797F -1.943512 1.509986 -1.559946F -2.416978 0.478807 1.554687F -4.588433 -1.093772 1.554989F -4.664193 -3.324572 0.000184F -2.530649 -3.982679 -1.553728F -0.335030 -2.444426 -1.553821F 0.798098 -2.328364 1.560588F 3.248366 -3.417213 1.562602F 5.214062 -2.369514 0.001196F 4.710089 -0.201520 -1.562632F 2.276808 0.924662 -1.565452

S21

Products (Me-Be-Me)

(1,1)-2-butyne

B3LYP/6-311++G(d,p) optimized geometry (Å).

E = -250.683564819E0 = -250.522545H = -250.510664G = -250.560136

0 1C -0.01834100 0.57866000 0.00033000C 0.93474200 -0.38287400 0.00004200C 0.36301700 2.05837100 0.00025100H 0.95196800 2.33323200 -0.88255000H -0.51843000 2.70640300 0.00122600H 0.95365700 2.33289300 0.88202200C 2.42288600 -0.12115800 -0.00060600H 2.89470300 -0.58047100 -0.87797900H 2.67057600 0.93969400 -0.00147700H 2.89527000 -0.57915900 0.87715500Be -1.63153700 0.13298600 0.00048500C 0.59169200 -1.85617300 0.00042000H 1.01195500 -2.35981100 -0.87862300H -0.48762700 -2.04013300 0.00101900C -3.26741600 -0.25638700 -0.00025200H -3.57524200 -0.77441900 0.91679300H -3.54159700 -0.90948900 -0.83839600H 1.01277000 -2.35951300 0.87924100H -3.90133500 0.63619000 -0.08149100

(1,2)-2-butyne

B3LYP/6-311++G(d,p) optimized geometry (Å).

E = -250.683564819E0 = -250.522545H = -250.510664G = -250.560136

0 1C -0.01834100 0.57866000 0.00033000C 0.93474200 -0.38287400 0.00004200C 0.36301700 2.05837100 0.00025100H 0.95196800 2.33323200 -0.88255000H -0.51843000 2.70640300 0.00122600H 0.95365700 2.33289300 0.88202200C 2.42288600 -0.12115800 -0.00060600H 2.89470300 -0.58047100 -0.87797900H 2.67057600 0.93969400 -0.00147700H 2.89527000 -0.57915900 0.87715500Be -1.63153700 0.13298600 0.00048500C 0.59169200 -1.85617300 0.00042000H 1.01195500 -2.35981100 -0.87862300H -0.48762700 -2.04013300 0.00101900C -3.26741600 -0.25638700 -0.00025200H -3.57524200 -0.77441900 0.91679300H -3.54159700 -0.90948900 -0.83839600H 1.01277000 -2.35951300 0.87924100H -3.90133500 0.63619000 -0.08149100

S22

Products (Me-Be-Me)

(1,1)-diphenylacetylene

B3LYP/6-311++G(d,p) optimized geometry (Å).

E = -634.250133540E0 = -633.982419H = -633.964919G = -634.027955

0 1C -0.34593400 1.88249400 -0.14291000C 0.06572900 0.58704600 -0.08442100Be -1.99504000 2.18053600 0.05931300C -3.56989100 2.69749400 0.34281400H -3.60853300 3.71115500 0.76151400H -4.09033100 2.04281900 1.05320600C 1.49181900 0.13734600 -0.06463600C 1.94555700 -0.82656200 -0.97825900C 2.40583100 0.64398000 0.86987400C 3.27211700 -1.24866300 -0.97509800H 1.25113400 -1.24265000 -1.69991900C 3.73104800 0.21248900 0.88380000H 2.06934000 1.37065100 1.60034700C 4.17082400 -0.73125100 -0.04231000H 3.60408200 -1.98525300 -1.69862200H 4.41886600 0.61205500 1.62108300H 5.20239700 -1.06500600 -0.03443700C 0.62165300 3.04027800 -0.31022000H 0.72211700 3.61415500 0.61947000H 1.62453100 2.73292000 -0.61731900C -0.95702400 -0.50162600 -0.02656500C -0.84849900 -1.55185500 0.90131800C -2.07484500 -0.48872300 -0.87672000C -1.83984100 -2.52110500 1.00293200H 0.01466500 -1.59354800 1.55581700C -3.07032900 -1.46241500 -0.77585900H -2.13685800 0.26331400 -1.65688700C -2.95909700 -2.47825800 0.16810100H -1.74299100 -3.31317900 1.73746300H -3.92067300 -1.43336000 -1.44816300H -3.72787800 -3.23860100 0.24635300H -4.17876600 2.71136100 -0.57013000H 0.24433700 3.74701200 -1.05806500

(1,2)-diphenylacetylene

B3LYP/6-311++G(d,p) optimized geometry (Å).

E = -634.250769038E0 = -633.983176H = -633.965590G = -634.029797

0 1C -1.00677000 1.02534000 -0.00740600C 0.25549900 1.52552700 -0.03575400Be -2.33272800 2.05936300 0.01064900C 0.50562200 3.02004600 -0.04742100H 1.09180700 3.33667900 0.82155700H -0.42598400 3.59472500 -0.03825200C -3.67361200 3.06906800 0.03523400H -4.61094400 2.50207000 0.10062200H -3.74615500 3.69075700 -0.86605600C -1.30998300 -0.43287700 0.08610300C -2.18816000 -1.03048900 -0.83348300C -0.81335100 -1.23334900 1.12829100C -2.53126400 -2.37765000 -0.73737100H -2.59367500 -0.43351200 -1.64542600C -1.16365500 -2.57658700 1.23263600H -0.14914400 -0.79264600 1.86271600C -2.02054400 -3.15808500 0.29808000H -3.20155800 -2.81550700 -1.46922400H -0.76682700 -3.17190600 2.04802200H -2.29159200 -4.20458700 0.38015000C 1.49847800 0.69709300 -0.10259200C 2.55940000 0.91017100 0.79047900C 1.65398100 -0.28645200 -1.09030700C 3.72469100 0.15045100 0.71506600H 2.46887700 1.66268600 1.56616700C 2.82440000 -1.03523400 -1.17683500H 0.85122900 -0.45917400 -1.79668100C 3.86330300 -0.82409300 -0.27144900H 4.52541500 0.32247700 1.42606900H 2.92460700 -1.78561500 -1.95337000H 4.77261600 -1.41105700 -0.33583200H -3.66413700 3.75581600 0.89101200H 1.07816900 3.31405700 -0.93367900

S23

Products (Et-Be-Et)

(1,1)-trans-2-butene

B3LYP/6-311++G(d,p) optimized geometry (Å).

E = -330.539051496E0 = -330.296998H = -330.282705G = -330.337528

0 1Be -0.82150300 -0.18947400 0.39724300C 0.83123500 0.08056000 0.05310900C 0.99285000 1.38933900 -0.76924800C 1.64468600 0.19641400 1.36547900H 1.30148500 1.01764300 2.00152600H 1.59337400 -0.71256400 1.97192300H 2.70800700 0.37954200 1.14559400C 0.40288300 2.65918500 -0.14091700H 0.54103600 3.52109400 -0.80001600H -0.67470100 2.56225600 0.04042500H 0.87560000 2.90245500 0.81396800C -2.45662200 -0.44611700 0.72406700C -3.44140100 -0.21145000 -0.44714200H -2.74880200 0.19370300 1.57091200H -2.58598200 -1.47202100 1.10117500H -4.48142000 -0.39208300 -0.15488500H -3.38812900 0.81584300 -0.82170900H -3.22784400 -0.87098000 -1.29438400H 0.53829200 1.24741100 -1.75812200H 2.06508300 1.55797200 -0.95975600C 1.40105600 -1.08203200 -0.80540700H 2.47041000 -0.89291100 -0.99284100H 0.92283200 -1.06285900 -1.79313000C 1.24968500 -2.49264900 -0.22021400H 1.65672300 -3.24398500 -0.90304800H 1.77582000 -2.60094400 0.73162600H 0.19799800 -2.75117100 -0.04660200

(1,2)-trans-2-butene

B3LYP/6-311++G(d,p) optimized geometry (Å).

E = -330.540546645E0 = -330.298096H = -330.283933G = -330.338739

0 1Be -1.204339 0.747031 0.252980C 0.479501 0.943507 0.366701C 1.298888 -0.005605 -0.553313C 0.781007 -1.463635 -0.520001C 0.853154 2.434031 0.159245H 0.679155 2.749683 -0.876077H 0.260048 3.096151 0.799738H 1.904661 2.642489 0.386005C 2.813820 0.047029 -0.283819H 3.355619 -0.641745 -0.940789H 3.218484 1.046592 -0.457098H 3.045023 -0.225398 0.750771C 0.868740 -2.178483 0.834581H 1.337558 -2.048025 -1.262637H -0.264035 -1.477252 -0.861043H 0.480881 -3.198073 0.757537H 1.900472 -2.247836 1.188740H 0.289239 -1.666348 1.608100C -2.888004 0.649858 0.183675C -3.499646 -0.656356 -0.377161H -3.260572 1.501229 -0.406601H -3.287031 0.825894 1.194614H -4.594672 -0.630520 -0.382253H -3.179179 -0.843825 -1.406949H -3.202658 -1.529058 0.213112H 1.148476 0.340780 -1.586256H 0.741132 0.695060 1.409717

S24

Products (Et-Be-Et)

(1,1)-2-butyne

B3LYP/6-311++G(d,p) optimized geometry (Å).

E = -329.324159009E0 = -329.105236H = -329.091155G = -329.145663

0 1C 0.58757800 0.25072100 0.00000000C 1.67229900 -0.56085600 -0.00003400C 0.74054300 1.77099500 -0.00010800H 1.32024100 2.09081000 -0.87560000H 1.32083700 2.09090700 0.87494900C 3.10718200 -0.08537300 -0.00021700H 3.63999800 -0.47164100 -0.87786000H 3.19965000 0.99987000 -0.00023600H 3.64023800 -0.47164000 0.87728100Be -0.92217600 -0.48403900 0.00014100C 1.55211200 -2.06963700 0.00011100H 2.04326600 -2.50438300 -0.87888800H 0.51321200 -2.41588300 0.00011900C -2.42222900 -1.26372700 0.00034400C -3.68098900 -0.36377800 -0.00046100H -2.46694500 -1.93687800 0.87031600H -2.46667700 -1.93805700 -0.86872100H -4.60757300 -0.94829300 -0.00016800H -3.71321200 0.28810400 0.87840100H -3.71297800 0.28684800 -0.88026200H 2.04321600 -2.50419700 0.87923300C -0.59535200 2.52354800 0.00030400H -1.19276000 2.27606800 -0.88437200H -1.19217500 2.27612800 0.88539000H -0.44650300 3.60703600 0.00021300

(1,2)-2-butyne

B3LYP/6-311++G(d,p) optimized geometry (Å).

E = -329.323356400E0 = -329.104578H = -329.090297G = -329.145685

0 1C 0.115395 0.865954 -0.018466C 1.304893 0.252272 -0.227105C 0.062430 2.362523 0.276261H 0.468863 2.958628 -0.550347H -0.960119 2.713812 0.441994H 0.636646 2.626270 1.172254C 2.636898 0.971625 -0.191570H 3.365153 0.494387 -0.854560H 2.544623 2.018648 -0.485624H 3.068296 0.958394 0.817105Be -1.290263 -0.040249 -0.094739C 1.397461 -1.238081 -0.493367C 2.145219 -2.024120 0.597741H 1.903826 -1.401913 -1.454462H 0.391477 -1.663556 -0.607944H 2.173728 -3.090666 0.357997H 3.178105 -1.681959 0.703089H 1.653385 -1.907004 1.567685C -2.736603 -0.911659 -0.168389C -4.033394 -0.114532 0.113748H -2.678465 -1.757580 0.533247H -2.816631 -1.382886 -1.159794H -4.928560 -0.742466 0.045780H -4.027570 0.326674 1.115729H -4.165497 0.708317 -0.596307

S25

Products (Et-Be-Et)

(1,1)-E-stilbene

B3LYP/6-311++G(d,p) optimized geometry (Å).

E = -714.101713905E0 = -713.753959H = -713.733468G = -713.804816

0 1Be -0.09336500 -1.79610900 -0.51953300C 0.65425700 -0.82293500 0.68026900C 1.55621700 -1.76250300 1.53550800C 2.65241800 -2.50226200 0.75829500H 3.23010600 -3.15296200 1.42088000H 2.23115900 -3.13667700 -0.03076900H 3.34825300 -1.80797300 0.28158100C -0.76999200 -2.84970300 -1.64859000C -1.46385500 -4.11712600 -1.09354300H 0.01584300 -3.15367800 -2.35681300H -1.48979100 -2.28781000 -2.26249400H -1.87619600 -4.74473600 -1.89086600H -0.77065900 -4.74189200 -0.52107000H -2.29358200 -3.86603100 -0.42460500H 0.91033000 -2.50353100 2.02331800H 2.01621100 -1.20458500 2.36322600C -0.40784400 -0.19728400 1.65555100H 0.11147900 0.45509000 2.36979700H -0.84519700 -1.01082700 2.24592500C -1.53016600 0.57569000 0.99831700C -2.68456000 -0.08307300 0.55454000C -1.44629800 1.95911100 0.80244300C -3.71714400 0.61176400 -0.07337300H -2.78801200 -1.15242300 0.71933900C -2.47666100 2.65974400 0.17779400H -0.56421300 2.49100300 1.14200800C -3.61521800 1.98861300 -0.26544900H -4.60352500 0.08031200 -0.40235700H -2.39013500 3.73189600 0.03865400H -4.41817300 2.53373500 -0.74885800C 1.45460500 0.29863900 0.00984000C 1.10924400 0.76350900 -1.26785100C 2.53131400 0.93615300 0.64770700C 1.80114500 1.80364100 -1.88773000H 0.26872700 0.31790200 -1.79548400C 3.22860100 1.97608300 0.03680900H 2.83665500 0.61839600 1.63843200C 2.86870300 2.41532500 -1.23680800H 1.50335500 2.13327400 -2.87711800H 4.05805600 2.44381200 0.55686200H 3.41418300 3.22182400 -1.71382400

(1,2)-E-stilbene

B3LYP/6-311++G(d,p) optimized geometry (Å).

E = -714.107698444E0 = -713.759311H = -713.738915G = -713.810546

0 1Be 2.240472 -1.309100 -0.377995C 0.712668 -0.577179 -0.548124C -0.404143 -1.187163 0.337019C -0.581833 -2.710281 0.076378C -1.037968 -3.107797 -1.331073H -1.304995 -3.095518 0.802827H 0.369416 -3.210973 0.302492H -1.166969 -4.191718 -1.395873H -1.994328 -2.644221 -1.584579H -0.312357 -2.821232 -2.097408C 3.755459 -2.023849 -0.197572C 4.440495 -1.851091 1.180217H 4.423932 -1.632828 -0.979611H 3.668452 -3.097194 -0.423794H 5.418990 -2.341693 1.216698H 4.599668 -0.795924 1.422165H 3.838289 -2.277752 1.988823H -0.083778 -1.118106 1.383461H 0.431962 -0.683682 -1.604091C 1.029449 0.886882 -0.312122C 1.370604 1.720106 -1.391685C 1.073403 1.451330 0.973922C 1.735539 3.050072 -1.200273H 1.339020 1.317929 -2.400432C 1.434070 2.783196 1.167955H 0.812575 0.849329 1.837364C 1.769017 3.591790 0.083716H 1.986236 3.666279 -2.057159H 1.450347 3.190637 2.173193H 2.047720 4.628107 0.236278C -1.750286 -0.465540 0.268153C -2.576210 -0.448311 1.399536C -2.222243 0.153081 -0.893929C -3.831941 0.154154 1.372584H -2.227777 -0.911423 2.318492C -3.479052 0.756543 -0.928884H -1.601787 0.177649 -1.781742C -4.290643 0.758676 0.203244H -4.448536 0.156952 2.264990H -3.820704 1.231671 -1.842156H -5.265589 1.232395 0.177655

S26

Products (Et-Be-Et)

(1,1)-diphenylacetylene

B3LYP/6-311++G(d,p) optimized geometry (Å).

E = -712.890911793E0 = -712.565766H = -712.545638G = -712.615682

0 1C -0.36150700 -1.42510300 -0.17963400C 0.30851400 -0.24531000 -0.07009200Be -2.02569200 -1.32443000 -0.46216100C -3.65223100 -1.43666200 -0.90680600C -4.70715900 -1.28644300 0.21387800H -3.80599100 -2.40199400 -1.41364600H -3.85020500 -0.68488900 -1.68582400H -5.73110800 -1.38186900 -0.16410400H -4.58234700 -2.04506000 0.99374900H -4.63661600 -0.30960400 0.70280100C 1.79564700 -0.09790900 -0.01535900C 2.39724700 0.64764600 1.01042200C 2.62590800 -0.67585300 -0.98612100C 3.78059500 0.78775800 1.07823500H 1.77248400 1.11507600 1.76358300C 4.01029500 -0.52521400 -0.92795600H 2.17945600 -1.23453700 -1.80058100C 4.59342100 0.20252300 0.10753300H 4.22466500 1.35751800 1.88719200H 4.63266600 -0.97448200 -1.69419600H 5.67050800 0.31735500 0.15543200C 0.33248700 -2.77667900 -0.13003100H 0.35138400 -3.21454500 -1.13753700H 1.37773400 -2.68242900 0.17918800C -0.38114100 -3.76394500 0.80904900H -0.40171500 -3.38335700 1.83434000H -1.41723200 -3.94035400 0.49938200H 0.12717900 -4.73244800 0.82070300C -0.46932900 1.03002800 -0.00475000C -0.11247800 2.14211100 -0.78689100C -1.60095000 1.14269100 0.81977900C -0.88181100 3.29995000 -0.77652100H 0.76772500 2.08591900 -1.41717200C -2.37241600 2.30630700 0.83256400H -1.84584500 0.33001400 1.49644900C -2.01903500 3.38638300 0.03019900H -0.59655500 4.13935800 -1.40127400H -3.23659400 2.37126000 1.48441900H -2.61317300 4.29310300 0.04074500

(1,2)-diphenylacetylene

B3LYP/6-311++G(d,p) optimized geometry (Å).

E = -712.891361809E0 = -712.566112H = -712.546002G = -712.616177

0 1C 0.993844 -0.166179 -0.078605C 0.057447 -1.147175 0.002463Be 2.625699 -0.569013 -0.157621C 0.465381 -2.612310 0.001593C 0.009313 -3.381626 -1.249144H 0.055874 -3.108021 0.889832H 1.556118 -2.691354 0.095892H 0.320323 -4.428428 -1.193588H -1.077713 -3.357534 -1.354180H 0.443106 -2.945876 -2.153606C 4.271539 -0.930931 -0.234727C 4.908894 -1.542493 1.036308H 4.815830 -0.011823 -0.500128H 4.447662 -1.606666 -1.085399H 5.977555 -1.744510 0.905900H 4.810944 -0.875212 1.898344H 4.435101 -2.490350 1.311513C 0.670623 1.289623 -0.024331C 1.163220 2.156086 -1.014576C -0.048508 1.858350 1.040046C 0.920708 3.527370 -0.964112H 1.729643 1.745244 -1.845538C -0.282147 3.229492 1.098482H -0.424572 1.215853 1.827660C 0.195873 4.071548 0.094426H 1.302215 4.170266 -1.750079H -0.839758 3.642641 1.932224H 0.011639 5.138926 0.140752C -1.418758 -0.908661 0.048451C -2.212696 -1.489844 1.048717C -2.053518 -0.125782 -0.926577C -3.589016 -1.277470 1.086510H -1.749701 -2.098946 1.817491C -3.430877 0.075238 -0.898784H -1.459783 0.324673 -1.712675C -4.204646 -0.495706 0.110512H -4.180406 -1.724574 1.878137H -3.900272 0.679854 -1.667030H -5.276654 -0.335300 0.135039

S27

Products (Ph-Be-Ph)

(1,1)-trans-2-butene

B3LYP/6-311++G(d,p) optimized geometry (Å).

E = -635.460541101E0 = -635.167337H = -635.149899G = -635.214076

0 1Be 0.58503400 0.74262400 0.14804600C -1.03749900 1.24864500 0.26598600C -1.28710600 1.91748900 1.63597400H -0.86080600 1.35217200 2.47082700H -0.82749100 2.91009600 1.65785100H -2.35475400 2.04780000 1.85340700C -1.43311000 2.22251300 -0.88462600H -1.12863400 1.81528200 -1.85431100H -0.85153600 3.14448400 -0.76419400C -2.92550700 2.58267100 -0.95744400H -3.11788900 3.25389700 -1.79979100H -3.54339100 1.69114300 -1.09330200H -3.26556700 3.08998300 -0.05103700C -1.70554900 -0.11678900 0.13323000C -1.69077500 -0.80406000 -1.09910800C -2.29351100 -0.78633900 1.22178300C -2.23790100 -2.07586800 -1.23676900H -1.24913200 -0.33388800 -1.97168600C -2.84067200 -2.06220100 1.08560300H -2.33642200 -0.30687500 2.19121900C -2.81886300 -2.71653200 -0.14273600H -2.21015000 -2.56776700 -2.20321600H -3.29020600 -2.54266200 1.94824400H -3.24570300 -3.70736300 -0.24762900C 2.17837700 0.22938800 0.05351100C 2.51535300 -1.13994400 -0.00258800C 3.25113100 1.14597400 0.03515500C 3.83985900 -1.56949700 -0.07097900H 1.72955500 -1.89035600 0.00678600C 4.57871300 0.72623600 -0.03475800H 3.05259500 2.21406700 0.07594900C 4.87478800 -0.63522800 -0.08731900H 4.06591100 -2.62987300 -0.11205500H 5.38069200 1.45687100 -0.04777600H 5.90642600 -0.96627100 -0.14095100

(1,2)-trans-2-butene

B3LYP/6-311++G(d,p) optimized geometry (Å).

E = -635.476354616E0 = -635.183544H = -635.166313G = -635.229971

0 1C 0.293136 0.622809 0.249815C 1.182412 -0.541728 -0.272334C 0.644860 1.967771 -0.430522H 0.470020 1.924924 -1.511976H 0.033877 2.788331 -0.039533H 1.695313 2.248978 -0.285614Be -1.395976 0.347605 0.154112C -3.083162 0.134891 0.067000C -3.680102 -1.127243 -0.138025C -3.964875 1.229858 0.197357C -5.065152 -1.290945 -0.208492H -3.053905 -2.009162 -0.245921C -5.351530 1.079787 0.129165H -3.563607 2.227663 0.356419C -5.905456 -0.184771 -0.074559H -5.489375 -2.277273 -0.367150H -5.998871 1.944606 0.234056H -6.982066 -0.307215 -0.128166C 0.821225 -1.885008 0.393777H 0.918603 -1.823172 1.482156H -0.209060 -2.177966 0.167739H 1.476107 -2.689060 0.045385C 2.679012 -0.275139 -0.128200C 3.514867 -0.252695 -1.250816C 3.265113 -0.059988 1.127679C 4.887751 -0.024927 -1.130865H 3.084925 -0.415501 -2.234652C 4.634463 0.166978 1.255638H 2.645337 -0.065207 2.018377C 5.454166 0.185690 0.125047H 5.511507 -0.011474 -2.018397H 5.063520 0.330445 2.238650H 6.519317 0.363305 0.223872H 0.509681 0.734644 1.326087H 0.992215 -0.649329 -1.347757

S28

Products (Ph-Be-Ph)

(1,1)-2-butyne

B3LYP/6-311++G(d,p) optimized geometry (Å).

E = -634.249516985E0 = -633.979844H = -633.962580G = -634.027224

0 1C 0.89681100 0.87067700 0.02447300C 1.24807500 2.18003600 0.00917500C 2.66595800 2.69587700 0.07198000H 2.76953300 3.41333300 0.89454700H 3.39724000 1.90116600 0.21153800H 2.92091900 3.24144800 -0.84483000Be -0.71349800 0.41066300 -0.00652900C -2.32378200 -0.06145000 -0.03923400C -3.15826900 0.06783600 1.09123000C -2.91409100 -0.60755500 -1.19874600C -4.49678100 -0.32172200 1.06979900H -2.75936600 0.48134500 2.01420500C -4.25130300 -1.00064400 -1.23096500H -2.32061800 -0.73222500 -2.10086500C -5.04597300 -0.85757600 -0.09429100H -5.11058700 -0.20917700 1.95740000H -4.67385900 -1.41797100 -2.13901900H -6.08679600 -1.16248000 -0.11545300C 1.91282300 -0.22521900 0.04714200C 1.99320700 -1.10152100 1.14153200C 2.76782600 -0.46140100 -1.04180600C 2.90671500 -2.15356000 1.15971600H 1.33834300 -0.94648800 1.99343300C 3.67748200 -1.51696400 -1.02888500H 2.71044700 0.18823300 -1.90875600C 3.75366700 -2.36721600 0.07332400H 2.95421900 -2.80902700 2.02267500H 4.32624900 -1.67700900 -1.88351600H 4.46041600 -3.18924600 0.08312800C 0.21382500 3.28078000 -0.04840000H 0.37358900 3.91907100 -0.92557200H -0.81066900 2.89995000 -0.09804700H 0.28780600 3.93415900 0.82898400

(1,2)-2-butyne

B3LYP/6-311++G(d,p) optimized geometry (Å).

E = -634.245797515E0 = -633.976391H = -633.958883G = -634.024013

0 1C -0.879727 1.973933 0.079727C -2.073311 1.330313 0.016775C -0.804631 3.494861 0.033403H 0.200450 3.859903 0.262461H -1.058701 3.882031 -0.960954H -1.485956 3.971135 0.747394C -3.413873 2.012370 -0.152748H -4.158222 1.596885 0.533483H -3.348753 3.086736 0.017224H -3.804892 1.869390 -1.167107Be 0.522376 1.048450 0.063680C 2.059218 0.369620 -0.035399C 2.282688 -0.997952 -0.299269C 3.207822 1.173206 0.129827C 3.567319 -1.531242 -0.394571H 1.435990 -1.665377 -0.433097C 4.497425 0.649468 0.041026H 3.101224 2.235967 0.334092C 4.679153 -0.707127 -0.222947H 3.703154 -2.587882 -0.601204H 5.358048 1.296464 0.175894H 5.680039 -1.119434 -0.294372C -2.108353 -0.159135 0.087629C -2.892315 -0.920968 -0.796486C -1.344245 -0.851138 1.042883C -2.878020 -2.311221 -0.753272H -3.501041 -0.420779 -1.540815C -1.326998 -2.245901 1.085325H -0.799892 -0.287691 1.793977C -2.091056 -2.982100 0.184640H -3.480036 -2.875565 -1.457163H -0.731501 -2.751929 1.837152H -2.085988 -4.065577 0.219052

S29

Products (Ph-Be-Ph)

(1,1)-E-stilbene

B3LYP/6-311++G(d,p) optimized geometry (Å).

E = -1019.02152621E0 = -1018.623125H = -1018.599284G = -1018.680117

0 1Be 0.41749300 -0.70665000 0.07889800C -0.86828000 0.36603100 -0.32013800C -0.37658200 1.40920300 -1.36778200H -0.43895400 0.94023700 -2.35241500C -1.98440400 -0.46971400 -0.96744000C -3.34300500 -0.27870500 -0.67859400C -1.66015200 -1.43979000 -1.93116400C -4.33043800 -1.02360100 -1.32283700H -3.63466300 0.45982100 0.05816500C -2.64244800 -2.18641600 -2.57684500H -0.61797700 -1.61592800 -2.18742300C -3.98751400 -1.98223900 -2.27352400H -5.37337900 -0.84957500 -1.08015000H -2.35546200 -2.93094800 -3.31143800H -4.75624200 -2.56337800 -2.77016500C 1.54134100 -1.89431600 0.45461800C 1.12283100 -3.18917200 0.82963400C 2.93313600 -1.67004200 0.40412300C 2.03365900 -4.19752700 1.14128300H 0.06237300 -3.42354000 0.87798700C 3.85171000 -2.67299900 0.71110000H 3.31067800 -0.69260600 0.11813100C 3.40257100 -3.93970400 1.08221900H 1.67852800 -5.18201600 1.42751000H 4.91614400 -2.46832200 0.66169700H 4.11490100 -4.72169300 1.32282700C -1.31017500 0.96635700 1.01450500C -1.39305800 2.34327000 1.26418600C -1.63704200 0.10372400 2.07882700C -1.78626000 2.83408400 2.51092200H -1.14378400 3.05434600 0.48668700C -2.02891700 0.58713900 3.32219200H -1.59989100 -0.97120000 1.92335100C -2.10643600 1.96209600 3.54666400H -1.83900200 3.90612100 2.66804000H -2.27176700 -0.10975800 4.11689100H -2.40790000 2.34465900 4.51509700C 1.03905300 1.95005900 -1.22208700C 1.69918400 2.43223500 -2.36256700C 1.73090300 1.98588300 -0.00549700C 2.99557500 2.93211800 -2.29218600H 1.18710400 2.40839400 -3.31969300C 3.03570800 2.48086600 0.06909600H 1.24763600 1.65901000 0.90848900C 3.67266600 2.95710200 -1.07197900H 3.48177500 3.29547100 -3.19099400H 3.54640700 2.49791100 1.02565100H 4.68419900 3.34285400 -1.01488700H -1.08244700 2.25108800 -1.41933300

Products (Ph-Be-Ph)

(1,2)-E-stilbene

B3LYP/6-311++G(d,p) optimized geometry (Å).

E = -1019.028781160E0 = -1018.630331H = -1018.606427G = -1018.688480

0 1Be -1.513095 0.258640 0.256279C 0.166418 0.462473 0.459937C 1.019553 -0.512922 -0.395948C 0.558527 -1.947950 -0.128568C -3.177647 0.206999 0.077397C -3.926171 1.383634 -0.141047C -3.902410 -1.001855 0.146436C -5.312952 1.357812 -0.282564H -3.419804 2.343209 -0.202971C -5.289147 -1.036660 0.007960H -3.375919 -1.938126 0.310288C -5.997095 0.145241 -0.207691H -5.859614 2.279861 -0.450390H -5.818123 -1.982180 0.067406H -7.076209 0.121392 -0.316270C 0.949177 -2.640510 1.024219C -0.311656 -2.585636 -1.020472C 0.476262 -3.925271 1.280441H 1.642087 -2.177317 1.717906C -0.785653 -3.873789 -0.768725H -0.617204 -2.074090 -1.928604C -0.394446 -4.547588 0.385420H 0.793897 -4.445116 2.177755H -1.454059 -4.349393 -1.478092H -0.757062 -5.549957 0.583262H 0.798738 -0.323029 -1.451869H 0.353425 0.240954 1.520490C 0.397687 1.943777 0.243089C 0.233375 2.841559 1.312486C 0.699499 2.488776 -1.015378C 0.364717 4.216334 1.136184H 0.005079 2.451691 2.300571C 0.835305 3.864358 -1.193321H 0.843424 1.835649 -1.868623C 0.667712 4.737856 -0.120803H 0.236638 4.880435 1.984284H 1.077183 4.253557 -2.176524H 0.775207 5.807300 -0.260949C 2.537350 -0.371347 -0.252763C 3.358483 -0.837484 -1.287891C 3.150151 0.178568 0.875780C 4.745339 -0.764126 -1.198018H 2.902829 -1.267542 -2.174927C 4.540562 0.251705 0.972964H 2.545164 0.571153 1.684046C 5.343756 -0.219364 -0.061855H 5.359036 -1.129588 -2.014221H 4.993742 0.686806 1.857101H 6.423741 -0.157757 0.011602

S30

Products (Ph-Be-Ph)

(1,1)-diphenylacetylene

B3LYP/6-311++G(d,p) optimized geometry (Å).

E = -1017.814839800E0 = -1017.439252H = -1017.415796G = -1017.495382

0 1C -0.181551 0.523303 0.100187C -0.930967 -0.615217 0.051451Be 1.498872 0.375164 0.061862C 3.169518 0.505083 -0.065021C 4.012604 -0.593405 -0.334086C 3.798126 1.760401 0.083394C 5.394535 -0.451343 -0.450007H 3.583945 -1.584350 -0.454448C 5.180186 1.912192 -0.025605H 3.199710 2.644068 0.290434C 5.981891 0.803922 -0.294255H 6.014295 -1.317106 -0.659630H 5.631061 2.891505 0.097123H 7.057269 0.917270 -0.381318C -0.229640 -1.930636 0.142552C -0.519247 -2.975352 -0.752200C 0.768391 -2.145709 1.107313C 0.191048 -4.169299 -0.707989H -1.296453 -2.836926 -1.494870C 1.479291 -3.346719 1.154078H 0.950796 -1.386158 1.860827C 1.196620 -4.359699 0.243448H -0.036785 -4.955765 -1.419062H 2.239173 -3.491349 1.913894H 1.743136 -5.295276 0.279419C -2.412285 -0.674966 -0.126578C -3.061444 0.088180 -1.108160C -3.189648 -1.525682 0.674775C -4.441423 0.011596 -1.274756H -2.477848 0.740146 -1.746326C -4.571851 -1.590693 0.519523H -2.706164 -2.134977 1.430341C -5.203396 -0.822918 -0.457813H -4.922435 0.604614 -2.044779H -5.154892 -2.244803 1.158547H -6.278656 -0.878660 -0.585657C -0.762263 1.891324 0.164509C -0.297732 2.898163 -0.699205C -1.716278 2.249796 1.132481C -0.789273 4.199623 -0.623661H 0.446044 2.651830 -1.451398C -2.196749 3.552896 1.218969H -2.077143 1.497098 1.823733C -1.741485 4.533906 0.337595H -0.423657 4.953326 -1.312679H -2.929936 3.804342 1.977824H -2.118825 5.548036 0.404943

(1,2)-diphenylacetylene

B3LYP/6-311++G(d,p) optimized geometry (Å).

E = -1017.814839800E0 = -1017.439252H = -1017.415796G = -1017.495382

0 1C -0.181551 0.523303 0.100187C -0.930967 -0.615217 0.051451Be 1.498872 0.375164 0.061862C 3.169518 0.505083 -0.065021C 4.012604 -0.593405 -0.334086C 3.798126 1.760401 0.083394C 5.394535 -0.451343 -0.450007H 3.583945 -1.584350 -0.454448C 5.180186 1.912192 -0.025605H 3.199710 2.644068 0.290434C 5.981891 0.803922 -0.294255H 6.014295 -1.317106 -0.659630H 5.631061 2.891505 0.097123H 7.057269 0.917270 -0.381318C -0.229640 -1.930636 0.142552C -0.519247 -2.975352 -0.752200C 0.768391 -2.145709 1.107313C 0.191048 -4.169299 -0.707989H -1.296453 -2.836926 -1.494870C 1.479291 -3.346719 1.154078H 0.950796 -1.386158 1.860827C 1.196620 -4.359699 0.243448H -0.036785 -4.955765 -1.419062H 2.239173 -3.491349 1.913894H 1.743136 -5.295276 0.279419C -2.412285 -0.674966 -0.126578C -3.061444 0.088180 -1.108160C -3.189648 -1.525682 0.674775C -4.441423 0.011596 -1.274756H -2.477848 0.740146 -1.746326C -4.571851 -1.590693 0.519523H -2.706164 -2.134977 1.430341C -5.203396 -0.822918 -0.457813H -4.922435 0.604614 -2.044779H -5.154892 -2.244803 1.158547H -6.278656 -0.878660 -0.585657C -0.762263 1.891324 0.164509C -0.297732 2.898163 -0.699205C -1.716278 2.249796 1.132481C -0.789273 4.199623 -0.623661H 0.446044 2.651830 -1.451398C -2.196749 3.552896 1.218969H -2.077143 1.497098 1.823733C -1.741485 4.533906 0.337595H -0.423657 4.953326 -1.312679H -2.929936 3.804342 1.977824H -2.118825 5.548036 0.404943

S31

Products (Ph-Be-Ph)

(1,1)-phenylacetylene

B3LYP/6-311++G(d,p) optimized geometry (Å).

E = -786.704853104E0 = -786.409396H = -786.390695G = -786.460492

0 1C 0.04221900 -0.05969100 0.01791300C 0.77065100 -1.20557100 -0.01565600Be -1.62415200 -0.23574500 0.00812900C -3.28480700 -0.46221600 -0.00674100C -3.97169100 -0.99107800 1.10671100C -4.06771100 -0.13362300 -1.13393300C -5.35276200 -1.18160300 1.09881400H -3.42111100 -1.26216600 2.00393700C -5.44921200 -0.31925800 -1.15147400H -3.59363300 0.27795900 -2.02121800C -6.09442800 -0.84482100 -0.03272400H -5.85051300 -1.59087100 1.97167200H -6.02230400 -0.05528200 -2.03409400H -7.16924900 -0.99087700 -0.04264300C 2.22636100 -1.44539400 0.02682700C 3.16003000 -0.53682800 0.55579200C 2.70512200 -2.67978900 -0.44684800C 4.51516700 -0.84862000 0.58752100H 2.82349200 0.40981800 0.95496400C 4.06207700 -2.98598900 -0.42752800H 1.99812700 -3.40374300 -0.83979400C 4.97483100 -2.06844500 0.08974700H 5.21722200 -0.13617400 1.00658600H 4.40555300 -3.94150300 -0.80814700H 6.03284300 -2.30416800 0.11383800C 0.62336600 1.31260800 0.00016300C 0.38894500 2.20516000 1.05800800C 1.34361700 1.78246200 -1.11050200C 0.88370200 3.50781400 1.02339600H -0.17476400 1.86866600 1.92259500C 1.82787700 3.08706000 -1.15057500H 1.52299700 1.11374800 -1.94504700C 1.60533400 3.95547100 -0.08167200H 0.69926700 4.17453800 1.85879400H 2.38103300 3.42717600 -2.01947200H 1.98338400 4.97100800 -0.11356100H 0.21213400 -2.14103800 -0.08436500

(1,2)-phenylacetylene

B3LYP/6-311++G(d,p) optimized geometry (Å).

E = -786.708430522E0 = -786.413069H = -786.394542G = -786.462332

0 1C -0.23686600 -1.40625300 -0.19484800C -1.19927400 -0.45298600 -0.10599600Be 1.40331500 -1.10011100 -0.12683000C 3.07375100 -0.95658100 -0.02658700C 3.71117200 0.25746300 0.30564200C 3.91452600 -2.06542900 -0.26212100C 5.09837500 0.36093700 0.39836400H 3.11422900 1.14517300 0.49621700C 5.30310500 -1.97203800 -0.17453100H 3.48184500 -3.02868600 -0.52133000C 5.89807300 -0.75566100 0.15702700H 5.55655500 1.30986700 0.65731300H 5.92009600 -2.84441800 -0.36326200H 6.97786000 -0.67836000 0.22687900C -0.81394100 0.99010600 -0.06286700C -1.34087200 1.85238300 0.91217400C 0.11919600 1.51069500 -0.97232200C -0.92081900 3.17592500 0.99567100H -2.07123500 1.47312400 1.61783300C 0.53528700 2.84000700 -0.89379200H 0.49179800 0.87689300 -1.77021500C 0.02052000 3.67559600 0.09383100H -1.32733300 3.82045800 1.76730100H 1.25071300 3.22229600 -1.61344600H 0.34021400 4.70965700 0.15609500C -2.65362300 -0.77291300 -0.04605500C -3.11763800 -1.90895300 0.63569000C -3.59743200 0.04027400 -0.69374800C -4.47182700 -2.22930200 0.65572000H -2.40972200 -2.53228000 1.16948700C -4.95106400 -0.28567200 -0.68369000H -3.26453400 0.92593900 -1.22231800C -5.39468100 -1.42119600 -0.00779500H -4.80874100 -3.10624500 1.19757600H -5.66022900 0.34881100 -1.20382900H -6.44973100 -1.67045700 0.00801700H -0.61084000 -2.42974800 -0.27359800

S32

Products (B(C6F5)3)

(1,1)-2-butyne

B3LYP/6-311++G(d,p) optimized geometry (Å).

E = -2364.99111384E0 = -2364.750051H = -2364.714534G = -2364.819020

0 1C 0.42644300 -1.20472400 1.89585200C -0.69727000 -1.93941400 1.73167900C 1.35577600 -1.47304700 3.07445000H 2.20366900 -0.78617500 3.08235800H 0.82718200 -1.33458600 4.02161700H 1.75615800 -2.49014500 3.05582900C -1.11583500 -3.06936000 2.64068000H -1.03903600 -4.02824100 2.11508600H -0.50825500 -3.12667900 3.54164800H -2.16186400 -2.95408000 2.93953500C -1.60681700 -1.76064300 0.55374900C -2.90501000 -1.26882700 0.71038400C -1.24661600 -2.15656800 -0.73543400C -3.79026900 -1.14669200 -0.35126800C -2.11517700 -2.05329900 -1.81704600C -3.39199000 -1.54269000 -1.62424000B 0.84800300 -0.07654100 0.90670000C 2.32622400 0.01034700 0.36816600C 3.10800900 -1.13468600 0.15024600C 2.95195100 1.22587800 0.05254700C 4.39693800 -1.08756900 -0.36267000C 4.24454200 1.31080500 -0.44358300C 4.96871000 0.14388600 -0.65941500C -0.18787900 1.04225500 0.49196400C -0.42075100 1.41285900 -0.83305900C -0.91762900 1.73981500 1.45665900C -1.33368800 2.39230900 -1.19458300C -1.82358600 2.74250700 1.13618600C -2.03592300 3.06511500 -0.19926500F -0.72042700 1.48297600 2.76174300F -2.48511300 3.40019000 2.09185800F -2.90918500 4.01584700 -0.52602100F -1.54478600 2.69615500 -2.47843000F 0.23532700 0.78002100 -1.82501600F 2.31587100 2.39127400 0.25590600F 2.61861400 -2.35236600 0.41813000F 5.09340500 -2.20850100 -0.56815200F 6.20642400 0.20656800 -1.14091900F 4.79963700 2.49519800 -0.71257400F -0.02909700 -2.67159100 -0.96595300F -1.73113300 -2.44390900 -3.03463400F -4.23268600 -1.43122000 -2.65239700F -5.01477600 -0.64639400 -0.16319600F -3.31971700 -0.86834800 1.92392600

(1,2)-2-butyne

B3LYP/6-311++G(d,p) optimized geometry (Å).

E = -2364.98882883E0 = -2364.747817H = -2364.712399G = -2364.816812

0 1C 0.85108800 0.33190200 1.33421400C 0.84225600 0.63660800 2.64811900C 2.07545000 0.93185500 3.45977700H 2.08760000 0.31462600 4.36400600H 3.00158800 0.75401200 2.91462800H 2.06898400 1.97707700 3.78915400C 2.12046700 0.34367300 0.53788600C 2.66513900 -0.79917900 -0.05439000C 2.82064800 1.53611600 0.31386900C 3.81838900 -0.76995300 -0.82895000C 3.97687200 1.59379800 -0.45345300C 4.47743900 0.43476700 -1.03369700C -0.43290100 0.65699100 3.45174800H -0.55132700 1.62161300 3.95737000H -1.32931800 0.47401500 2.85716100H -0.39866800 -0.10949700 4.23316200B -0.47269300 0.00110100 0.53866800C -1.46251700 1.16446400 0.12291100C -1.04177100 2.30323500 -0.56569900C -2.82458000 1.11051400 0.42673000C -1.90531300 3.32522500 -0.93506100C -3.71473700 2.12295700 0.09850500C -3.25001700 3.23648500 -0.59263300C -0.85878600 -1.46426100 0.11654800C -1.38060700 -1.75230300 -1.15054100C -0.71020900 -2.56270800 0.97220800C -1.71468700 -3.03535300 -1.55871000C -1.05954500 -3.85438100 0.60737900C -1.55769400 -4.09199900 -0.66906600F -3.31558800 0.05543000 1.10738500F -5.00406800 2.04031200 0.43817200F -4.09043800 4.21369500 -0.92613400F -1.46159000 4.38382800 -1.61703800F 0.24056400 2.41359600 -0.95020900F -1.53893400 -0.76859100 -2.05409200F -2.18316700 -3.26481400 -2.78811100F -1.88417600 -5.32749000 -1.03742600F -0.25171200 -2.39044500 2.22012000F -0.92274300 -4.86921500 1.46464600F 2.08889700 -1.99862800 0.13960500F 4.30229500 -1.89493300 -1.36525300F 5.58695500 0.47758200 -1.77231600F 2.38742100 2.68189100 0.85763400F 4.61054200 2.75577700 -0.63864600

S33

Products (B(C6F5)3)

(1,1)-phenylacetylene

B3LYP/6-311++G(d,p) optimized geometry (Å).

E = -2517.45370310E0 = -2517.187075H = -2517.150318G = -2517.258069

0 1C 0.35697200 -1.32794000 -0.23765600C -0.26643300 -2.41013600 -0.77012000C 1.74705400 -1.49534200 0.27174800C 2.73310500 -2.23695200 -0.39376600C 2.15224100 -0.88537200 1.46397300C 4.02604300 -2.36801700 0.09847100C 3.43364900 -1.00275100 1.98152700C 4.37943700 -1.75269700 1.29305800B -0.30542500 0.08300600 -0.08217900C -1.76903600 0.22773900 0.48684200C -2.24297800 -0.55576700 1.54533400C -2.67650900 1.16492800 -0.01739900C -3.52073700 -0.41743000 2.07250100C -3.96491600 1.31684600 0.46897500C -4.38763500 0.52150400 1.52854900C 0.52259300 1.38109900 -0.43060600C 0.45707500 2.55308100 0.33329200C 1.38654800 1.43117900 -1.53095800C 1.19835600 3.68922000 0.04187800C 2.12834800 2.55577400 -1.86474200C 2.03506000 3.69125700 -1.06873300F -2.32363400 1.94594600 -1.05631200F -4.80203200 2.21001600 -0.06798600F -5.61999000 0.65600900 2.01466400F -3.92373700 -1.17875600 3.09453300F -1.45400100 -1.47305100 2.12543000F -0.32739800 2.60883200 1.42079600F 1.11557000 4.77770000 0.81105000F 2.74491900 4.77613900 -1.36746700F 1.50543800 0.36656800 -2.34359500F 2.92491700 2.55903600 -2.93730200F 2.46522900 -2.83445200 -1.56472000F 4.93574400 -3.07789200 -0.57523000F 5.61662400 -1.87822600 1.77341300F 1.26457800 -0.14997400 2.16039900F 3.76052600 -0.40783300 3.13209700C -1.54366100 -2.42667000 -1.48310500C -2.39769400 -3.53640500 -1.34866300C -1.93080900 -1.38459600 -2.34210600C -3.62528100 -3.56933600 -1.99822600H -2.09977900 -4.36305900 -0.71243000C -3.15643600 -1.42352500 -3.00068100H -1.24339500 -0.56913700 -2.53667100C -4.01084400 -2.51005700 -2.82283400H -4.28037800 -4.42334800 -1.86976200H -3.43486500 -0.61543100 -3.66734200H -4.96230300 -2.54379000 -3.34106700H 0.22200400 -3.37862800 -0.69909300

(1,2)-phenylacetylene

B3LYP/6-311++G(d,p) optimized geometry (Å).

E = -2517.45287749E0 = -2517.186197H = -2517.149385G = -2517.258145

0 1C 0.19559600 1.59047900 -0.45650100C -1.12948500 1.78521100 -0.22617500C -2.01492900 0.71997700 0.33293200C -3.15409600 0.29801000 -0.36013400C -1.79004200 0.13804300 1.58236800C -4.01413800 -0.66686800 0.14695500C -2.64356700 -0.81980300 2.11725500C -3.75796300 -1.22688700 1.39389100B 1.06347400 0.32525200 -0.33567100C 2.61771300 0.51148600 -0.12914100C 3.14384000 1.53227600 0.67397600C 3.56787000 -0.32140200 -0.73439400C 4.50515800 1.71230000 0.87738100C 4.93595700 -0.15879900 -0.57025900C 5.40655700 0.86244000 0.24715700C 0.50484000 -1.14716400 -0.47800900C 0.82619900 -2.15038900 0.43884300C -0.28360200 -1.54505600 -1.55939400C 0.38276200 -3.45969900 0.31555300C -0.72892500 -2.84943900 -1.72871400C -0.39725200 -3.81097300 -0.78079700F -0.61321200 -0.65736400 -2.51417700F -1.46883900 -3.18927600 -2.78826400F -0.82580500 -5.06412700 -0.92197200F 0.69875900 -4.38143300 1.22939000F 1.58339700 -1.85607600 1.51146900F 3.17576300 -1.31643000 -1.54925400F 2.32339900 2.37596300 1.31947500F 4.95685800 2.68912000 1.66882600F 6.71515900 1.02775800 0.42249800F 5.80201200 -0.96681700 -1.18798100F -0.73605800 0.50997800 2.32284100F -2.40078700 -1.34885900 3.31909600F -4.57748700 -2.15124300 1.89202000F -5.08123700 -1.06119400 -0.55135400F -3.43037800 0.81121800 -1.56415600C -1.77247200 3.10161000 -0.45682500C -1.36280700 3.92269500 -1.52053600C -2.79629900 3.56153100 0.38635500C -1.95018400 5.16524300 -1.72474800H -0.60474900 3.56849700 -2.20872200C -3.37331800 4.81213600 0.18926100H -3.12826300 2.94808600 1.21588600C -2.95350500 5.61769900 -0.86724500H -1.63269600 5.77827700 -2.56046200H -4.15113700 5.15681600 0.86083700H -3.40979500 6.58779600 -1.02729500H 0.73192900 2.49537400 -0.73233400

S34

Adduct (B(C6F5)3)

(1,1)-phenylacetylene

B3LYP/6-311++G(d,p) optimized geometry (Å).

E = -2517.39133405E0 = -2517.127851H = -2517.090621G = -2517.198459

0 1C -1.460001 0.082024 2.154326C -0.237165 0.106754 1.896442C -0.806432 -0.413916 -0.801410C -1.581522 -1.550435 -0.559071C -1.137308 0.255108 -1.980927C -2.621168 -1.977236 -1.370991C -2.169301 -0.139020 -2.828539C -2.923706 -1.260074 -2.520355C 1.596950 -1.111330 0.317969C 1.777150 -2.150707 -0.601165C 2.548620 -1.104270 1.343817C 2.778038 -3.111666 -0.497539C 3.556637 -2.044233 1.492176C 3.672234 -3.066394 0.560671B 0.410829 0.018366 0.205366C 0.942591 1.555633 0.005133C 2.251333 1.906224 -0.338597C 0.087080 2.650468 0.162001C 2.684545 3.220545 -0.487199C 0.477099 3.974380 0.031785C 1.794595 4.265842 -0.293790F -0.441097 1.335301 -2.388164F -2.436747 0.555903 -3.941028F -3.922074 -1.649153 -3.318322F -3.326922 -3.075332 -1.061954F -1.313199 -2.332080 0.515875F 3.184801 0.965310 -0.580827F 3.953527 3.482942 -0.820410F 2.193743 5.532228 -0.429575F -0.405796 4.968456 0.202327F -1.227577 2.452280 0.426039F 2.546650 -0.108576 2.268006F 4.423814 -1.964600 2.508928F 4.636905 -3.981103 0.674911F 2.888030 -4.077259 -1.417388F 0.988313 -2.267675 -1.687762C -2.840505 0.047710 2.331098C -3.492854 -1.181664 2.599534C -3.594474 1.245590 2.256136C -4.864092 -1.203356 2.788344H -2.906541 -2.090374 2.641284C -4.965312 1.205111 2.446712H -3.084261 2.174973 2.039620C -5.596196 -0.014250 2.712033H -5.369103 -2.140119 2.989629H -5.548134 2.116130 2.386747H -6.670398 -0.038838 2.857655H 0.581932 0.235597 2.590760

S35

Products (Be(C6F5)2)

(1,1)-2-butyne

B3LYP/6-311++G(d,p) optimized geometry (Å).

E = -1626.88072230E0 = -1626.692284H = -1626.666072G = -1626.751258

0 1C -0.985966 1.452218 -0.088645C -1.200732 2.790846 -0.150961Be 0.575418 0.865720 -0.094128C 2.145249 0.241143 -0.136422C 2.454254 -0.894236 -0.877494C 3.199824 0.810204 0.568494C 3.726711 -1.446054 -0.929987F 1.476898 -1.502780 -1.586275C 4.490476 0.300065 0.550180F 2.974870 1.917544 1.311432C 4.749586 -0.838799 -0.207097F 3.984692 -2.539396 -1.654610F 5.479403 0.876952 1.240948F 5.980396 -1.348606 -0.240551C -2.100080 0.479991 0.070899C -2.057465 -0.481865 1.085750C -3.184390 0.381371 -0.807481C -3.031075 -1.454925 1.253933F -1.014643 -0.477248 1.943834C -4.174659 -0.584438 -0.668835F -3.284677 1.224213 -1.849452C -4.102549 -1.504621 0.369403F -2.948160 -2.339837 2.252652F -5.193921 -0.638209 -1.533139F -5.051258 -2.432606 0.513878C -0.057991 3.752896 -0.367651H -0.234228 4.360064 -1.262701H 0.031761 4.449006 0.473154H 0.908317 3.254792 -0.494438C -2.537852 3.467626 -0.000779H -2.451685 4.326190 0.672842H -2.879156 3.855773 -0.967091H -3.309153 2.802510 0.386454

(1,2)-2-butyne

B3LYP/6-311++G(d,p) optimized geometry (Å).

E = -1626.87199276E0 = -1626.683880H = -1626.657384G = -1626.742960

0 1C -0.937274 2.738258 -0.368408C -2.166976 2.208623 -0.181167Be 0.365636 1.688856 -0.320808C 1.737748 0.700520 -0.281283C 1.729843 -0.629747 -0.685086C 2.958996 1.186706 0.173111C 2.853267 -1.443883 -0.648610F 0.578003 -1.175958 -1.137880C 4.112612 0.417263 0.230005F 3.043118 2.473471 0.581072C 4.052506 -0.909822 -0.185580F 2.804008 -2.719152 -1.046053F 5.268334 0.922781 0.672453F 5.145498 -1.670591 -0.140668C -2.289356 0.729777 0.074778C -2.760691 -0.143435 -0.908964C -1.987337 0.161433 1.314187C -2.906015 -1.506298 -0.690207F -3.074432 0.335476 -2.123597C -2.122624 -1.200827 1.561654F -1.560135 0.937177 2.325423C -2.583258 -2.037544 0.553847F -3.341160 -2.310935 -1.663351F -1.817336 -1.707276 2.760409F -2.711493 -3.345661 0.775913C -0.704493 4.215565 -0.623824H -1.610318 4.824114 -0.591147H -0.006166 4.628068 0.112487H -0.241433 4.368965 -1.605052C -3.496607 2.925804 -0.186830H -3.398741 3.989782 -0.395197H -4.163082 2.492974 -0.939701H -3.994493 2.812324 0.782622

S36

Products (Be(C6F5)2)

(1,1)-diphenylacetylene

B3LYP/6-311++G(d,p) optimized geometry (Å).

E = -2010.44673885E0 = -2010.152529H = -2010.120032G = -2010.219723

0 1Be 0.922891 0.071375 0.168146C -1.647968 -0.970842 0.159991C -1.357951 -2.091003 -0.626498C -2.754964 -1.097851 1.008739C -2.123940 -3.247179 -0.614620C -3.535898 -2.245877 1.048508C -3.225359 -3.324847 0.229550C 2.572592 -0.304944 0.060035C 3.346435 -0.565083 1.184070C 3.235754 -0.376072 -1.159601C 4.696387 -0.881890 1.125909C 4.584003 -0.687874 -1.274847C 5.315615 -0.942056 -0.118896C -1.192789 1.489443 0.015422C -0.748853 0.204761 0.152487C -2.571983 1.901233 -0.359083C -3.217092 2.939382 0.329981C -3.248770 1.278556 -1.418124C -4.511929 3.319910 -0.008339H -2.706508 3.437288 1.146372C -4.538200 1.671112 -1.766922H -2.752851 0.499041 -1.984222C -5.176802 2.687537 -1.058389H -5.001867 4.111936 0.546686H -5.041637 1.186879 -2.596126H -6.182780 2.989563 -1.326687C -0.188697 2.575102 0.205765C -0.085821 3.646160 -0.698878C 0.723364 2.514133 1.274596C 0.920822 4.593505 -0.561269H -0.786832 3.716497 -1.522231C 1.731188 3.471888 1.413063H 0.595991 1.756247 2.041345C 1.836312 4.507653 0.491989H 0.998005 5.402003 -1.279483H 2.415574 3.413327 2.251596H 2.614909 5.254365 0.597215F 2.769931 -0.509097 2.408925F 5.406357 -1.125520 2.234207F 2.553422 -0.128124 -2.298722F 5.187987 -0.744381 -2.467379F 6.612685 -1.242425 -0.203812F -0.287725 -2.051874 -1.447168F -1.812605 -4.281201 -1.403789F -3.974276 -4.430107 0.258878F -4.582989 -2.323753 1.877351F -3.079045 -0.101495 1.846522

(1,2)-diphenylacetylene

B3LYP/6-311++G(d,p) optimized geometry (Å).

E = -2010.43801096E0 = -2010.143999H = -2010.111374G = -2010.212448

0 1C -1.079397 1.115187 -0.093135C -1.835139 -0.008669 0.012056Be 0.591825 1.012728 -0.113961C 2.278738 0.940071 -0.162320C 2.954313 -0.103125 -0.786041C 3.078696 1.919615 0.416981C 4.338072 -0.188890 -0.843458F 2.240972 -1.094687 -1.368772C 4.466066 1.882696 0.387481F 2.493233 2.963489 1.041716C 5.095228 0.817207 -0.249961F 4.950116 -1.209297 -1.452975F 5.201877 2.843824 0.954856F 6.425853 0.759715 -0.291826C -1.128020 -1.326582 0.163676C -1.161812 -2.286754 -0.852458C -0.418883 -1.667588 1.317547C -0.518186 -3.510816 -0.739506F -1.812686 -2.021995 -1.992506C 0.230903 -2.889793 1.458399F -0.365134 -0.814748 2.356739C 0.182241 -3.813734 0.423739F -0.553573 -4.394072 -1.740372F 0.894248 -3.180239 2.581997F 0.807894 -4.984783 0.541311C -3.322064 -0.095192 -0.023336C -4.071788 0.640088 -0.953732C -4.003580 -0.947341 0.858839C -5.457894 0.533896 -0.990493H -3.563785 1.284652 -1.659219C -5.392479 -1.040934 0.831924H -3.445814 -1.531161 1.582801C -6.124850 -0.300967 -0.094152H -6.019004 1.101513 -1.724247H -5.900861 -1.695163 1.531176H -7.205650 -0.379983 -0.123099C -1.646324 2.493847 -0.124216C -1.291785 3.379197 -1.154520C -2.463271 2.975266 0.911450C -1.766128 4.689229 -1.170780H -0.655973 3.031471 -1.963688C -2.925054 4.287794 0.902172H -2.730048 2.314683 1.728116C -2.584594 5.148956 -0.141216H -1.490623 5.350994 -1.984373H -3.552000 4.640621 1.713630H -2.946780 6.170614 -0.146401

S37

Transition States (Me-Be-Me)

(1,1)-2-butyne

B3LYP/6-311++G(d,p) optimized geometry (Å).

E = -250.571970989E0 = -250.417376H = -250.404444G = -250.456485

0 1C -1.50053400 0.25675500 -0.02688000C -0.26631200 0.08154700 0.01616800C -2.88328400 0.72219300 -0.08556700H -3.43490900 0.46709300 0.82292700H -2.86024100 1.81133400 -0.17571700H -3.41135300 0.31777200 -0.95291200Be 1.56315100 0.20671500 -0.00908400C 2.05356100 1.87306700 0.06347900H 1.78373000 2.33555000 1.02595000H 1.57939800 2.50301000 -0.70424000C 2.38272500 -1.32261200 -0.10730800H 3.47486800 -1.22491600 -0.12103600H 2.11883300 -1.88979800 -1.01565300C -1.03484900 -1.53207700 0.13917000H -0.48631800 -2.01817800 -0.66107600H -0.71110600 -1.85226900 1.12391400H -2.09814200 -1.75430800 0.01688500H 2.14748100 -1.99714700 0.73221000H 3.13731900 2.00176600 -0.04928700

(1,2)-2-butyne

B3LYP/6-311++G(d,p) optimized geometry (Å).

E = -250.616113396E0 = -250.457372H = -250.445916G = -250.492714

0 1C -0.37333500 0.92089800 0.09849400C -0.87414500 -0.24248700 0.01407100C -0.74600900 2.36144500 0.06503300H -1.81594100 2.52281400 -0.10279900H -0.18724200 2.87798200 -0.71959700H -0.46868000 2.84068800 1.00794900C -2.09380100 -1.06407700 -0.17406300H -2.35544800 -1.61939600 0.73022600H -1.98498700 -1.78059200 -0.99110400H -2.92076100 -0.38786300 -0.41247700Be 0.99568800 -0.10903300 0.04105000C 2.67492300 0.22752800 -0.15485500H 2.88839300 1.16236500 -0.68521900H 3.15216800 0.32096900 0.83217600C 0.52270400 -1.89319200 0.18332900H -0.26560100 -2.41773900 0.71306300H 1.44622300 -2.03605600 0.75679700H 0.65729000 -2.33085800 -0.80820700H 3.20980600 -0.57686800 -0.67706200

S38

Transition States (Me-Be-Me)

(1,1)-diphenylacetylene

B3LYP/6-311++G(d,p) optimized geometry (Å).

E = -634.148882793E0 = -633.887789H = -633.869247G = -633.936945

0 1C -0.29433600 -0.69958200 0.08021600C 0.89214600 -1.12711600 0.07640000Be 2.41058200 -2.15410900 0.14517600C 2.83192100 -2.79285000 -1.41820600H 3.79495200 -3.31905300 -1.40720700H 2.89761200 -2.03023000 -2.20832100C 3.06803200 -2.27473300 1.75138000H 2.42673400 -2.89898700 2.39278100H 3.16537400 -1.31510500 2.27983600C -1.70330600 -0.44609600 0.06373500C -2.25100800 0.79069500 0.43800000C -2.55729500 -1.49704900 -0.31918900C -3.62991700 0.96850600 0.43134900H -1.59474400 1.60303200 0.72368700C -3.93413800 -1.30972600 -0.30542900H -2.13452700 -2.44828600 -0.61852500C -4.47490800 -0.07864200 0.06581300H -4.04571600 1.92809300 0.71594900H -4.58604400 -2.12572300 -0.59490000H -5.54913600 0.06464800 0.06617100C 1.79806200 2.53721500 0.98186300C 1.94173600 3.11439800 -0.28162000C 1.64125300 2.38155400 -1.43184800C 1.19547300 1.07016900 -1.32464800C 1.05078100 0.48480400 -0.05472000C 1.34856900 1.22777900 1.10140800H 2.03888400 3.10765400 1.87129400H 2.29207200 4.13645400 -0.37021600H 1.75889700 2.83233700 -2.41028600H 0.96798300 0.48401400 -2.20642500H 1.24234700 0.75912600 2.07188500H 2.08269000 -3.51715200 -1.77311300H 4.06191200 -2.74034700 1.75967100

(1,2)-diphenylacetylene

B3LYP/6-311++G(d,p) optimized geometry (Å).

E = -634.183252537E0 = -633.918487H = -633.901045G = -633.964907

0 1C 0.71720500 0.73086300 -0.18459900C -0.55998500 0.75855100 -0.15965800Be 0.34059400 2.40628300 -0.12220300C -1.43864300 2.74256600 -0.48912300H -2.21002000 2.20666900 -1.02931000H -1.08253200 3.55772900 -1.13266200C 1.32609600 3.78044100 0.21719300H 2.08790100 3.59562600 0.98366300H 0.74180300 4.65167800 0.54030700C -1.80289300 0.00284500 -0.05869400C -2.65291000 0.13221900 1.04914300C -2.12635800 -0.92086200 -1.06378400C -3.79610400 -0.65344800 1.15186300H -2.40821100 0.84373100 1.82886000C -3.27437000 -1.70202700 -0.95775800H -1.47519000 -1.01956300 -1.92452700C -4.11144600 -1.57069200 0.14884600H -4.44204200 -0.55089600 2.01648200H -3.51534800 -2.41148100 -1.74139000H -5.00499700 -2.17900000 0.23031800C 1.83805800 -0.19158400 -0.05340300C 3.15285400 0.29720300 -0.08417700C 1.63684700 -1.57485900 0.10193900C 4.23602700 -0.56902700 0.03708000H 3.31089000 1.36252800 -0.20109100C 2.72013400 -2.43833700 0.22274000H 0.62650000 -1.96621600 0.12917700C 4.02293000 -1.93804200 0.19032200H 5.24616900 -0.17584500 0.01231900H 2.55036400 -3.50261800 0.34327000H 4.86632100 -2.61303600 0.28433100H 1.87148200 4.09120800 -0.68579900H -1.85012100 3.16949200 0.42729000

S39

Transition States (Et-Be-Et)

(1,1)-trans-2-butene

B3LYP/6-311++G(d,p) optimized geometry (Å).

E = -330.443516349E0 = -330.209909H = -330.194727G = -330.251996

0 1C -2.40715600 0.25440300 0.37471500C -1.42201000 -0.29859100 -0.44204500H -3.45744100 -0.02611400 0.22232800H -1.74228800 0.87267000 -0.69208400C -2.14618200 1.16962600 1.53226100H -2.85565600 2.00017300 1.56425500H -2.29040900 0.58710700 2.44975600H -1.12424000 1.54999600 1.53093100C -1.88541100 -1.27320300 -1.50053400H -1.59490200 -2.27360200 -1.16562400H -2.96904700 -1.27344600 -1.67130600H -1.37389900 -1.10646300 -2.45117300Be 0.38981500 -0.07877100 -0.19674600C 1.02655200 -1.52390800 0.57371900C 2.55008900 -1.61835900 0.78855800H 0.69462300 -2.41481900 0.01422400H 0.52455600 -1.63201100 1.55165300H 2.85605400 -2.54276300 1.29736800H 3.09153800 -1.58407900 -0.16297200H 2.92463300 -0.78272700 1.38862400C 1.04704700 1.43771300 -0.77510600C 2.52000100 1.78644000 -0.48241300H 0.41766000 2.28189700 -0.43696500H 0.90054100 1.44389800 -1.87144200H 2.83525600 2.74315800 -0.91995000H 2.71036800 1.84972700 0.59477400H 3.19581000 1.01775500 -0.87035500

(1,2)-trans-2-butene

B3LYP/6-311++G(d,p) optimized geometry (Å).

E = -330.483404072E0 = -330.243579H = -330.229662G = -330.282154

0 1C -1.364754 0.960695 -0.273193C -1.451070 -0.482140 -0.194090H -1.601548 1.365881 -1.257220H -1.883468 -0.887418 0.718650C -1.862386 1.805325 0.896783H -1.499081 2.833747 0.822482H -2.959144 1.847827 0.946345H -1.514208 1.417545 1.859944C -1.827832 -1.246961 -1.446613H -2.890771 -1.074284 -1.646747H -1.273092 -0.886425 -2.317217H -1.666186 -2.322964 -1.358934Be 0.290488 0.421059 -0.231650C 1.822826 1.137560 -0.574547C 3.100911 0.279684 -0.612987H 1.966749 1.961953 0.142037H 1.715124 1.657132 -1.539773H 4.000506 0.868427 -0.829349H 3.283789 -0.232124 0.339159H 3.045492 -0.499362 -1.382815C 0.313096 -1.407726 0.358846C 0.720265 -1.145380 1.815501H 1.335785 -1.964648 2.202890H -0.158580 -1.065608 2.462792H 1.303642 -0.227330 1.939525H -0.256282 -2.330434 0.298261H 1.182973 -1.552497 -0.291635

S40

Transition States (Et-Be-Et)

(1,1)-2-butyne

B3LYP/6-311++G(d,p) optimized geometry (Å).

E = -329.208304642E0 = -328.996148H = -328.980719G = -329.039854

0 1C 2.08340700 -0.29588900 -0.01455300C 0.83646800 -0.27993600 0.00918500C 3.52027900 -0.03620500 -0.04230200H 3.99346400 -0.47096400 -0.92649500H 3.65799900 1.04743000 -0.07695000H 4.01653900 -0.41602300 0.85443600Be -0.93496600 0.12954000 0.01032500C -1.22102900 1.85010600 0.04515000C -0.03853300 2.83658100 -0.00696100H -1.81570000 2.05623100 0.95071900H -1.91539900 2.08260900 -0.77845800H -0.34358500 3.89120200 0.02299900H 0.64885400 2.68662000 0.83572700H 0.55241400 2.70850000 -0.92309400C -2.00395500 -1.24473700 -0.02748900C -3.51710500 -0.94972900 -0.02780100H -1.77769400 -1.91428600 0.82261600H -1.76908700 -1.86546800 -0.91225400H -4.14146500 -1.85283600 -0.06119700H -3.81253800 -0.38909300 0.86600700H -3.80117700 -0.33181800 -0.88680400C 1.36136700 -1.99813300 0.05996200H 0.94600600 -2.30969200 1.01240500H 0.78983300 -2.36349400 -0.78699300H 2.38600500 -2.36943300 -0.02511100

(1,2)-2-butyne

B3LYP/6-311++G(d,p) optimized geometry (Å).

E = -329.255207894E0 = -329.038627H = -329.024766G = -329.077806

0 1C 1.294979 -0.989801 -0.013787C 1.404892 0.266571 -0.166832C 2.099643 -2.218693 0.227392H 1.952655 -2.929562 -0.590406H 3.171872 -2.016163 0.320711H 1.759714 -2.720670 1.137031C 2.322619 1.430334 -0.236164H 3.319635 1.094440 0.065480H 2.389735 1.831222 -1.250914H 2.018467 2.241648 0.428039Be -0.320290 -0.435654 -0.107839C -1.790956 -1.309000 0.208135C -3.117831 -0.744918 -0.331352H -1.866798 -1.416727 1.302389H -1.668683 -2.339686 -0.152909H -3.984058 -1.357537 -0.051809H -3.318449 0.267144 0.038694H -3.117593 -0.685416 -1.426467C -0.465025 1.376792 -0.497266C -0.926030 2.133656 0.749186H -1.423668 3.074130 0.484054H -0.086177 2.388457 1.403161H -1.630440 1.546015 1.342945H 0.154441 2.002658 -1.133542H -1.323241 1.093018 -1.120975

S41

Transition States (Et-Be-Et)

(1,1)-E-stilbene

B3LYP/6-311++G(d,p) optimized geometry (Å).

E = -714.011354944E0 = -713.671436H = -713.650408G = -713.722818

0 1C -0.38467500 -1.36280500 -0.19318700C 0.54245800 -0.29927900 -0.15718200H -0.00154900 -2.38621500 -0.25112600H 0.02279300 -0.63588100 -1.26466000Be 0.20618500 1.48590100 -0.03755800C 0.31648200 2.03659900 1.63245800C -0.49789300 3.27736500 2.04898700H 1.38960800 2.26509300 1.75991300H 0.13277100 1.22987300 2.35832200H -0.30756700 3.58630300 3.08583800H -0.27639700 4.13712900 1.41037600H -1.57811100 3.10148100 1.96880300C -0.08085800 2.30210600 -1.56804200C -0.32187300 3.82449600 -1.56945500H -0.93669000 1.81210000 -2.06622600H 0.76256900 2.08563000 -2.24696100H -0.47455200 4.23633800 -2.57630400H -1.20324400 4.09302200 -0.97778200H 0.52391000 4.36376000 -1.12886200C 1.97464500 -0.69327400 -0.09822600C 2.41753400 -1.65403600 0.82517300C 2.92442300 -0.05201700 -0.90968800C 3.76903500 -1.97298400 0.92485700H 1.70502200 -2.12935800 1.49107200C 4.27071600 -0.39316000 -0.82740800H 2.59821800 0.70868600 -1.60951900C 4.69790600 -1.35135100 0.09190600H 4.09722300 -2.70478500 1.65451100H 4.98969000 0.09921000 -1.47236000H 5.74965300 -1.60323600 0.16653000C -1.84984300 -1.26479700 -0.11270500C -2.50168200 -0.11156200 0.35205100C -2.61768000 -2.38046100 -0.48704100C -3.89000300 -0.07386300 0.41731600H -1.92343200 0.74020100 0.68992800C -4.00501400 -2.33814000 -0.42228000H -2.11940800 -3.28054400 -0.83238600C -4.64318500 -1.18144000 0.02679400H -4.38489200 0.81863200 0.78167700H -4.58791300 -3.20273500 -0.71758100H -5.72539700 -1.14668800 0.08106200

(1,2)-E-stilbene

B3LYP/6-311++G(d,p) optimized geometry (Å).

E = -714.052984178E0 = -713.707408H = -713.687299G = -713.756754

0 1C -0.473465 -0.354345 -0.584104 C 0.531138 -0.282397 0.468525 H -0.097250 -0.649344 -1.558840 H 0.216501 -0.640463 1.444712 Be -0.205117 1.358240 -0.324785 C -0.642028 2.788049 -1.175204 C 0.009313 4.135959 -0.813789 H -1.736418 2.885153 -1.099027 H -0.478517 2.589249 -2.245780 H -0.366318 4.963819 -1.426540 H -0.169942 4.413930 0.231121 H 1.096974 4.113146 -0.951645 C 0.828830 1.575984 1.293626 C -0.263191 2.089077 2.239223 H 0.152822 2.824715 2.936822 H -0.679880 1.275915 2.839868 H -1.093785 2.573519 1.718592 H 1.621944 1.101194 1.861919 H 1.315151 2.385671 0.736673 C -1.870905 -0.764833 -0.320404 C -2.461470 -0.771047 0.955730 C -2.680358 -1.159811 -1.403628 C -3.787506 -1.160161 1.139106 H -1.889364 -0.468224 1.825335 C -4.002307 -1.545904 -1.220155 H -2.255552 -1.165254 -2.402294 C -4.569641 -1.550176 0.055395 H -4.209444 -1.155464 2.138648 H -4.593734 -1.848476 -2.077817 H -5.600968 -1.850424 0.199437 C 1.936734 -0.670175 0.139259 C 2.651850 -1.476779 1.032807 C 2.565841 -0.268634 -1.047240 C 3.952498 -1.885215 0.744247 H 2.181971 -1.796756 1.957274 C 3.868410 -0.667691 -1.331575 H 2.041020 0.361677 -1.757525 C 4.566559 -1.480342 -0.438562 H 4.484570 -2.518872 1.444910 H 4.339053 -0.344020 -2.253112 H 5.579828 -1.792990 -0.663145

S42

Transition States (Et-Be-Et)

(1,1)-diphenylacetylene

B3LYP/6-311++G(d,p) optimized geometry (Å).

E = -712.785013123E0 = -712.466361H = -712.445343G = -712.519310

0 1C 0.50778000 -0.39557300 -0.14243300C -0.74629800 -0.48039600 -0.03839200Be -2.43113500 -1.18322900 -0.14214400C -2.62050400 -2.63554500 0.81580200H -3.29217700 -3.30532600 0.25700700H -3.21194700 -2.34185300 1.70021200C -3.53116000 -0.28210200 -1.14752200H -3.09072400 -0.13209700 -2.14864400H -3.62476000 0.74273100 -0.74738100C -1.39043000 -3.43227100 1.28508200H -1.64431500 -4.32043800 1.87929000H -0.79328600 -3.78650600 0.43475600H -0.72447200 -2.81839200 1.90444800C -4.94474100 -0.87616600 -1.31716400H -5.60368500 -0.26415900 -1.94832200H -4.90673400 -1.87384500 -1.76877000H -5.44670900 -0.99416100 -0.35027800C 1.92779500 -0.54296500 -0.25122800C 2.75227400 0.48053400 -0.74456400C 2.49399000 -1.77578900 0.12248700C 4.12077900 0.27000200 -0.86401000H 2.31670100 1.43251500 -1.02126300C 3.86197800 -1.97800700 -0.01808700H 1.85566700 -2.55971800 0.51119100C 4.67809500 -0.95801600 -0.50683200H 4.75398300 1.06532000 -1.23958900H 4.29234300 -2.93182300 0.26399700H 5.74554000 -1.11804400 -0.60519000C -0.69187800 3.36702400 -0.56264000C -0.52202400 3.83291100 0.74334200C -0.30482100 2.93458300 1.78962700C -0.25739900 1.56922100 1.53591400C -0.42969800 1.09582800 0.22358800C -0.63898400 2.00485000 -0.82892000H -0.86795200 4.06716200 -1.37092300H -0.56250100 4.89709000 0.94573500H -0.17739700 3.29916100 2.80222900H -0.09734500 0.85994500 2.33882900H -0.78422500 1.62662000 -1.83305900

(1,2)-diphenylacetylene

B3LYP/6-311++G(d,p) optimized geometry (Å).

E = -712.822204073E0 = -712.499557H = -712.479670G = -712.549742

0 1C -0.760685 0.242898 0.076033 C 0.514805 0.316422 0.121198 Be -0.428559 1.918160 -0.061703 C 1.338576 2.391503 0.306241 C 2.071011 2.858093 -0.947426 H 2.016442 1.914423 1.007582 H 0.890233 3.238442 0.845659 H 2.888836 3.543267 -0.693806 H 2.517023 2.016466 -1.485097 H 1.405572 3.382347 -1.637904 C -1.471809 3.252471 -0.455040 C -2.127716 3.888963 0.790815 H -2.261393 2.947123 -1.153780 H -0.897082 4.028407 -0.981934 H -2.751239 4.757424 0.544159 H -2.768511 3.175997 1.321827 H -1.379765 4.237458 1.513788 C 1.788268 -0.392444 0.114738 C 2.336215 -0.834297 -1.098800 C 2.451936 -0.698125 1.313030 C 3.520467 -1.567509 -1.110907 H 1.824511 -0.608255 -2.026857 C 3.634067 -1.431329 1.295181 H 2.031067 -0.365090 2.254795 C 4.172789 -1.865935 0.083834 H 3.932886 -1.905036 -2.055047 H 4.134479 -1.666091 2.227862 H 5.094676 -2.436160 0.072513 C -1.831501 -0.744883 0.006323 C -3.168654 -0.327577 -0.064761 C -1.555079 -2.123614 0.013392 C -4.201432 -1.259310 -0.128035 H -3.384292 0.733991 -0.071555 C -2.587865 -3.052766 -0.048139 H -0.525835 -2.459276 0.067994 C -3.914142 -2.623342 -0.119534 H -5.230128 -0.921085 -0.183248 H -2.360490 -4.113110 -0.041124 H -4.718250 -3.349184 -0.167882

S43

Transition States (Ph-Be-Ph)

(1,1)-trans-2-butene

B3LYP/6-311++G(d,p) optimized geometry (Å).

E = -635.377899688E0 = -635.091779H = -635.073687G = -635.139061

0 1C 0.24470900 3.02825300 0.57380900C -0.06570000 2.14014200 -0.45358300H 0.09142300 4.10368000 0.41725400H 1.14002100 2.38731600 -0.29780900C 0.73280200 2.63593300 1.93359500H 1.53787400 3.28934600 2.27812700H -0.10517000 2.76179000 2.62945400H 1.05312600 1.59388100 1.96933800C -0.62026900 2.72687600 -1.73100200H -1.67383000 2.43750800 -1.78746900H -0.55825400 3.82032000 -1.78895600H -0.13846900 2.29332900 -2.61039700Be -0.02457400 0.32304800 -0.24431900C 1.53825100 -0.43661300 -0.15940000C 1.73907700 -1.62727000 0.57240100C 2.69157000 0.08846700 -0.78095700C 2.98767800 -2.24092200 0.68559600H 0.89220000 -2.09026600 1.07236600C 3.94718100 -0.51622300 -0.69136700H 2.61773300 0.99719100 -1.38086800C 4.09885500 -1.68646800 0.05052700H 3.09537500 -3.15329000 1.26438000H 4.80304600 -0.07974500 -1.19750900H 5.07068200 -2.16233600 0.13018700C -1.60807600 -0.38059200 -0.10324000C -2.74979700 0.32696600 0.32594500C -1.82141900 -1.73848700 -0.42451000C -4.00952100 -0.26431800 0.43911700H -2.66316300 1.38096500 0.58966600C -3.07528100 -2.34479300 -0.33013700H -0.98292900 -2.34219500 -0.76194000C -4.17585000 -1.60795600 0.10627600H -4.85946700 0.31879900 0.78111300H -3.19509000 -3.39143100 -0.59338700H -5.15207600 -2.07504000 0.18529400

(1,2)-trans-2-butene

B3LYP/6-311++G(d,p) optimized geometry (Å).

E = -635.411868394E0 = -635.121042H = -635.103889G = -635.166668

0 1C -0.425151 2.548599 0.034106 C -1.636275 1.834810 -0.318679 H 0.029901 3.081505 -0.801527 H -2.426575 1.848876 0.426286 C -0.362144 3.295907 1.364744 H 0.667832 3.554667 1.622878 H -0.940709 4.229399 1.347774 H -0.750908 2.693782 2.192780 C -2.148476 1.928329 -1.740422 H -2.509001 2.951516 -1.891825 H -1.353280 1.756678 -2.470790 H -2.966397 1.236684 -1.943644 Be 0.095370 0.880683 0.018747 C -1.453786 -0.145921 -0.029188 C -1.874479 -0.547953 1.250309 C -1.650476 -1.040256 -1.093433 C -2.432199 -1.806226 1.468303 H -1.763323 0.126628 2.095552 C -2.219999 -2.294506 -0.884990 H -1.340776 -0.767750 -2.097304 C -2.611574 -2.680974 0.397289 H -2.735923 -2.098756 2.467602 H -2.354581 -2.972628 -1.720900 H -3.057285 -3.655968 0.559708 C 1.620670 0.102195 -0.027445 C 2.806483 0.864597 -0.081557 C 1.784436 -1.296995 -0.006313 C 4.071264 0.276090 -0.117108 H 2.742391 1.949765 -0.097901 C 3.041944 -1.900867 -0.037751 H 0.907060 -1.936766 0.035847 C 4.191317 -1.112951 -0.094480 H 4.961041 0.896614 -0.161161 H 3.127974 -2.982951 -0.018437 H 5.171739 -1.577305 -0.120248

S44

Transition States (Ph-Be-Ph)

(1,1)-2-butyne

B3LYP/6-311++G(d,p) optimized geometry (Å).

E = -634.140594366E0 = -633.875531H = -633.857387G = -633.923712

0 1C -0.11253700 3.19956600 -0.13623000C -0.01884000 1.96593200 0.00876900C -0.44559000 4.58687700 -0.44575300H 0.38719700 5.10673600 -0.92629100H -1.29241100 4.57826800 -1.13667500H -0.74298100 5.13665800 0.45090500Be -0.06576900 0.15506100 -0.03379300C 1.23714300 2.74509800 1.03870300H 0.87441800 2.64533600 2.05654000H 2.00102700 2.01207900 0.78855500H 1.66053700 3.73765500 0.87257300C 1.50389100 -0.59016300 -0.04681300C 2.58625900 -0.09223200 -0.80379100C 1.77645600 -1.75211900 0.70611300C 3.84322400 -0.70106300 -0.82004200H 2.44582000 0.79370600 -1.42341900C 3.03036200 -2.36632300 0.71491200H 0.98429700 -2.19560600 1.30459300C 4.07048600 -1.84222500 -0.05198400H 4.64240400 -0.29003300 -1.42986800H 3.19561800 -3.25724900 1.31328200H 5.04481000 -2.31973200 -0.05471000C -1.65219200 -0.52719500 -0.04410300C -1.84823100 -1.88655500 -0.37201500C -2.82249700 0.19943900 0.26127900C -3.11163300 -2.47848000 -0.39597000H -0.98651800 -2.50092100 -0.61979700C -4.09391400 -0.37670200 0.24896100H -2.74440700 1.25303000 0.52396700C -4.24154100 -1.72287500 -0.08286800H -3.21765200 -3.52712900 -0.65712900H -4.96771400 0.21940000 0.49536600H -5.22644500 -2.17832800 -0.09772500

(1,2)-2-butyne

B3LYP/6-311++G(d,p) optimized geometry (Å).

E = -634.184669510E0 = -633.917349H = -633.900130G = -633.963347

0 1C 0.643894 3.754449 -0.000320 C -0.121320 2.478399 -0.000155 C -1.292854 2.000742 0.000095 C -2.757283 2.233783 0.000444 H -3.234765 1.803721 0.882233 H -2.919892 3.317255 0.000602 H -3.235162 1.803910 -0.881221 C -1.376568 -0.143700 -0.000033 C -1.844275 -0.695627 -1.203595 C -2.720239 -1.780411 -1.206378 C -3.162322 -2.323853 0.000088 C -2.719569 -1.780827 1.206497 C -1.843589 -0.696061 1.203599 H -1.510321 -0.286457 2.153228 H -3.056267 -2.202670 2.147695 H -3.846716 -3.164995 0.000133 H -3.057474 -2.201931 -2.147531 H -1.511613 -0.285660 -2.153280 Be 0.165000 0.771769 -0.000140 C 1.673507 -0.061031 -0.000083 C 1.742250 -1.468050 -0.000451 C 2.957537 -2.154257 -0.000410 C 4.158053 -1.445016 -0.000002 C 4.130731 -0.050975 0.000369 C 2.907346 0.620751 0.000322 H 2.920382 1.707461 0.000593 H 5.060656 0.509456 0.000582 H 5.105817 -1.973407 0.000008 H 2.969847 -3.239900 -0.000713 H 0.822689 -2.046951 -0.000793 H -0.008228 4.633382 -0.001442 H 1.293815 3.805433 0.876894 H 1.295440 3.804373 -0.876364

S45

Transition States (Ph-Be-Ph)

(1,1)-E-stilbene

B3LYP/6-311++G(d,p) optimized geometry (Å).

E = -1018.94258264E0 = -1018.550361H = -1018.526207G = -1018.607737

0 1C 0.24437900 -1.78211100 -1.12997000C -0.61969200 -0.93128400 -0.41313800H -0.16574200 -2.71661200 -1.52362100H 0.13060200 -1.71407300 0.23526600Be -0.18080700 0.62947100 0.41127200C 0.53617900 0.42832700 1.98937100C 1.52912200 1.30962600 2.46825500C 0.18819400 -0.62252100 2.86565400C 2.13604700 1.15456400 3.71546300H 1.83870600 2.14774600 1.84859700C 0.77448700 -0.78683000 4.12268600H -0.58800800 -1.33129200 2.57818600C 1.75825900 0.10280200 4.55030400H 2.89895000 1.85565400 4.04066300H 0.46421900 -1.60344500 4.76785100H 2.22204000 -0.01877200 5.52370800C -0.47771800 2.11379100 -0.45378600C -0.64824200 2.19645000 -1.85195300C -0.57194900 3.33806900 0.24266500C -0.88576100 3.40187600 -2.51514700H -0.59341600 1.29066300 -2.45421500C -0.81930200 4.55178000 -0.40150300H -0.45274000 3.34375500 1.32284200C -0.97401900 4.58774300 -1.78696900H -1.00426300 3.41805800 -3.59450300H -0.88959600 5.46944900 0.17478000H -1.16254200 5.52873400 -2.29346400C -2.03154700 -1.40038000 -0.27575300C -3.06092700 -0.46804600 -0.47423900C -2.37768400 -2.72367700 0.04666300C -4.39518400 -0.86009000 -0.39234700H -2.80864000 0.56005800 -0.70442700C -3.71147400 -3.10522500 0.15191700H -1.60358000 -3.45747900 0.24937200C -4.72581200 -2.17603200 -0.07701200H -5.17683900 -0.12873900 -0.56357900H -3.95868800 -4.12658800 0.41890200H -5.76496800 -2.47402700 0.00288300C 1.66299000 -1.57351700 -1.44966500C 2.39913700 -2.67384000 -1.92171100C 2.29671400 -0.32581300 -1.33312100C 3.74293800 -2.53902500 -2.24779700H 1.91145300 -3.63743000 -2.02751900C 3.64036700 -0.19504500 -1.66185400H 1.73851800 0.54677500 -1.01593900C 4.36575800 -1.29817000 -2.11382000H 4.30231300 -3.39485000 -2.60677000H 4.12048500 0.77218700 -1.57312000H 5.41339200 -1.18818700 -2.37014600

(1,2)-E-stilbene

B3LYP/6-311++G(d,p) optimized geometry (Å).

E = -1018.980937530E0 = -1018.584413H = -1018.561020G = -1018.639385

0 1C -1.036057 -0.722079 -0.784408 C 0.076916 -1.367972 -0.106513 H -0.900658 -0.584667 -1.853486 H -0.180299 -2.090270 0.658892 Be -0.162538 0.611045 0.000603 C 0.802392 -0.175205 1.353388 C -0.013879 -0.088777 2.496776 C 2.192246 -0.090066 1.519071 C 0.541103 0.133558 3.757110 H -1.093172 -0.170085 2.408295 C 2.748187 0.114528 2.778699 H 2.845621 -0.179707 0.658264 C 1.923783 0.229278 3.900072 H -0.105070 0.220530 4.623773 H 3.824928 0.186870 2.888162 H 2.359120 0.386653 4.880567 C 0.060711 2.253871 -0.420859 C -0.661606 2.838746 -1.481754 C 0.959648 3.101167 0.257550 C -0.498744 4.175204 -1.848226 H -1.376460 2.237271 -2.037602 C 1.133122 4.439700 -0.095652 H 1.542288 2.707646 1.086137 C 0.402849 4.980574 -1.153383 H -1.073869 4.589638 -2.670384 H 1.835035 5.061457 0.451433 H 0.533514 6.021011 -1.432288 C -2.447816 -0.957327 -0.390460 C -3.470484 -0.447709 -1.213603 C -2.844120 -1.668742 0.755371 C -4.812944 -0.635515 -0.907949 H -3.199184 0.103712 -2.108088 C -4.191009 -1.854954 1.063553 H -2.102887 -2.099456 1.419218 C -5.186488 -1.339250 0.237868 H -5.572573 -0.229309 -1.567237 H -4.460238 -2.413392 1.953899 H -6.233003 -1.484519 0.479183 C 1.276970 -1.782564 -0.889734 C 1.890461 -3.005764 -0.591169 C 1.798604 -1.007237 -1.935080 C 2.981082 -3.456145 -1.330529 H 1.505116 -3.611644 0.222322 C 2.897929 -1.451154 -2.664818 H 1.356527 -0.046978 -2.178151 C 3.490013 -2.678728 -2.369223 H 3.434326 -4.411904 -1.092821 H 3.291442 -0.836762 -3.466631 H 4.342451 -3.024912 -2.942458

S46

Transition States (Ph-Be-Ph)

(1,1)-diphenylacetylene

B3LYP/6-311++G(d,p) optimized geometry (Å).

E = -1017.71622135E0 = -1017.345039H = -1017.321038G = -1017.403057

0 1C -1.55052000 -0.01711700 -0.05476400C -0.30145700 -0.06120500 0.11026000Be 1.39745200 0.59354500 0.04242200C -2.94678700 0.26346400 -0.20275700C -3.46294500 1.41258300 0.42300600C -3.79136700 -0.54974900 -0.97568600C -4.80249600 1.74560800 0.25731100H -2.80762200 2.03498600 1.01984700C -5.13116800 -0.21343600 -1.12089600H -3.39419400 -1.43973600 -1.44790700C -5.63812700 0.93418700 -0.50932200H -5.19503500 2.63627700 0.73364200H -5.78153700 -0.84515800 -1.71442600H -6.68368100 1.19365800 -0.62884300C -1.18953000 -3.49765500 1.73877100C -0.99168800 -4.36357400 0.66095000C -0.69352100 -3.85857800 -0.60605500C -0.59853200 -2.48667200 -0.80311700C -0.78590900 -1.61306700 0.28121800C -1.08867100 -2.12469100 1.55424400H -1.41733600 -3.89461800 2.72105600H -1.06564100 -5.43471100 0.81022500H -0.52926800 -4.53481800 -1.43660800H -0.35019800 -2.08009000 -1.77566900H -1.23250800 -1.44079500 2.38200100C 2.71096900 -0.51443600 -0.16560500C 2.78946000 -1.78357900 0.44663800C 3.80886800 -0.16956400 -0.98409800C 3.87547400 -2.64317400 0.26940100H 1.98319600 -2.11807600 1.09632000C 4.89509500 -1.02235600 -1.18779900H 3.81795600 0.79920000 -1.47783800C 4.93323200 -2.26557200 -0.55687400H 3.89823500 -3.60567200 0.77237800H 5.71497100 -0.71644200 -1.83091200H 5.77842300 -2.93017500 -0.70438000C 1.41975800 2.32853900 0.14407900C 2.57549300 2.99280600 0.60810800C 0.34498700 3.16382700 -0.22185900C 2.65345400 4.38326000 0.70742800H 3.44280100 2.40605000 0.89962400C 0.40869300 4.55624700 -0.14347700H -0.57637600 2.72063600 -0.59661800C 1.56762000 5.17186100 0.32849400H 3.56137200 4.85270900 1.07432600H -0.44013600 5.16143100 -0.44874600H 1.62446300 6.25341800 0.39724600

(1,2)-diphenylacetylene

B3LYP/6-311++G(d,p) optimized geometry (Å).

E = -1017.748381980E0 = -1017.375238H = -1017.351908G = -1017.431555

0 1C -0.302575 1.084323 0.053091 C 0.828279 0.516678 -0.073059 C 0.706290 -1.670035 0.082429 C 1.258202 -2.074337 1.307343 C 2.006056 -3.247224 1.408149 C 2.240037 -4.024013 0.274211 C 1.711226 -3.630246 -0.956054 C 0.955577 -2.463409 -1.049750 H 0.533050 -2.186662 -2.011236 H 1.881148 -4.237471 -1.839074 H 2.829950 -4.930965 0.347797 H 2.411474 -3.550217 2.367755 H 1.103534 -1.472264 2.198246 Be -0.728512 -0.602097 0.041943 C -2.304724 -1.297515 -0.052795 C -2.551558 -2.601679 0.418934 C -3.813855 -3.192538 0.345724 C -4.877589 -2.495182 -0.225699 C -4.667977 -1.206437 -0.714624 C -3.404293 -0.621171 -0.618142 H -3.276304 0.387077 -1.002289 H -5.488572 -0.657570 -1.166497 H -5.859362 -2.952576 -0.291540 H -3.966888 -4.197941 0.725866 H -1.737256 -3.176872 0.851670 C -0.938508 2.394837 0.064740 C -2.167803 2.582200 0.713919 C -0.329959 3.494558 -0.565710 C -2.763572 3.840050 0.749171 H -2.647536 1.735177 1.188752 C -0.938879 4.744561 -0.545183 H 0.617661 3.359465 -1.074065 C -2.154638 4.922739 0.116676 H -3.709421 3.971784 1.262451 H -0.462764 5.582824 -1.041700 H -2.624858 5.899477 0.135877 C 2.277867 0.664765 -0.104247 C 3.077004 0.166915 -1.142087 C 2.874243 1.428699 0.912356 C 4.441319 0.433206 -1.164141 H 2.627728 -0.430583 -1.924262 C 4.242101 1.685055 0.888494 H 2.259124 1.818082 1.714817 C 5.029074 1.188718 -0.148870 H 5.049003 0.047477 -1.974738 H 4.691618 2.271720 1.681655 H 6.094642 1.387319 -0.166513

S47

Transition States (Ph-Be-Ph)

(1,1)-phenylacetylene

B3LYP/6-311++G(d,p) optimized geometry (Å).

E = -786.608637209E0 = -786.320487H = -786.301118G = -786.371700

0 1C -1.85616500 0.01130700 0.00508700C -0.60914000 -0.08934100 -0.04286100Be 1.18388100 -0.02510300 -0.04632100C -3.29412100 -0.04436800 0.01858200C -3.94855100 -0.91534000 -0.86622500C -4.03556100 0.74155800 0.91347000C -5.33588400 -1.00168600 -0.84275900H -3.36864100 -1.51407900 -1.55761200C -5.42253500 0.65582700 0.91689800H -3.52537700 1.40639600 1.60027700C -6.07269100 -0.21598800 0.04319600H -5.84178900 -1.67828400 -1.52108400H -5.99591000 1.26441800 1.60581100H -7.15435400 -0.28301000 0.05316900C 1.78660800 1.60263600 -0.06362200C 1.13663000 2.67285300 -0.71237000C 2.98746000 1.93441700 0.59948100C 1.63760400 3.97618300 -0.71239400H 0.21403900 2.49221700 -1.26612100C 3.49755400 3.23320700 0.62225400H 3.54121700 1.15533100 1.11685700C 2.82335300 4.26080000 -0.03719200H 1.10844900 4.76620200 -1.23679900H 4.42251100 3.44506100 1.14992800H 3.21885700 5.27108700 -0.02709200C 1.96874400 -1.56114300 0.00094100C 3.32973700 -1.68639700 -0.35168500C 1.32439200 -2.75790400 0.38006200C 4.00038900 -2.90991800 -0.32989600H 3.88271600 -0.80193600 -0.65704100C 1.98105500 -3.98885000 0.41587600H 0.27421200 -2.73562600 0.66650200C 3.32616100 -4.06775900 0.05743900H 5.04747500 -2.96236000 -0.61244200H 1.44765000 -4.88461800 0.71968900H 3.84341000 -5.02145500 0.07914800H -1.20023600 1.08048900 -0.01358700

(1,2)-phenylacetylene

B3LYP/6-311++G(d,p) optimized geometry (Å).

E = -786.63320658E0 = -786.341787H = -786.323092G = -786.391383

0 1C 0.967877 -1.233560 -0.021007C -0.023277 -1.996463 -0.161088C -1.989365 -1.125534 -0.040555C -2.596021 -1.421751 1.190237C -3.945666 -1.769566 1.261605C -4.706035 -1.855360 0.096357C -4.112895 -1.585230 -1.138171C -2.766918 -1.231419 -1.205149H -2.324959 -1.021871 -2.174800H -4.701064 -1.648424 -2.047663H -5.752659 -2.134114 0.148043H -4.400160 -1.979227 2.224183H -2.016227 -1.375013 2.107987Be -0.467776 -0.188885 -0.049394C -0.480439 1.531542 -0.081305C -1.602928 2.245897 0.382030C -1.658008 3.640148 0.358510C -0.586327 4.371104 -0.152434C 0.536083 3.697326 -0.632218C 0.585017 2.303194 -0.586509H 1.476949 1.809892 -0.962500H 1.372706 4.257756 -1.037930H -0.626551 5.455055 -0.179305H -2.537840 4.155983 0.730420H -2.460945 1.702227 0.768289C 2.410560 -1.084843 0.047670C 3.250495 -1.992042 -0.621544C 2.988072 -0.044332 0.789900C 4.632342 -1.857033 -0.547851H 2.811077 -2.795660 -1.200978C 4.372236 0.073085 0.877822H 2.345033 0.666509 1.293797C 5.197265 -0.827679 0.206320H 5.269965 -2.558811 -1.073672H 4.806223 0.875871 1.462906H 6.275067 -0.727776 0.267116H -0.497924 -2.951758 -0.264041

S48

Transition States (B(C6F5)3)

(1,1)-2-butyne

B3LYP/6-311++G(d,p) optimized geometry (Å).

E = -2364.90284705E0 = -2364.665381H = -2364.629886G = -2364.732933

0 1C -0.41143800 0.41767300 3.28057500C -0.07175800 0.04932800 2.14724700C -0.91844000 1.01153100 4.50852400H -1.60336400 1.81070400 4.21208500H -1.46900500 0.28579500 5.11212500H -0.11389100 1.44846900 5.10512400C 0.84872800 -0.93841300 3.29827000H 0.43317600 -1.25599700 4.25497500H 0.81907300 -1.81585200 2.65741500H 1.83812500 -0.50837000 3.39968400C 1.41864000 -0.79236500 0.09961200C 2.63019300 -0.33829200 0.62256900C 1.54532300 -1.86551700 -0.78272200C 3.86904500 -0.88401300 0.32354900C 2.76756000 -2.44513400 -1.11544800C 3.93889700 -1.95407800 -0.55905400C -0.03933300 1.53962800 0.01503900C 0.77913600 2.09400000 -0.97079700C -0.96395200 2.43487900 0.55131900C 0.70761000 3.42367700 -1.37306800C -1.07173100 3.76869500 0.18378800C -0.22113400 4.27270600 -0.78926700B 0.00852500 -0.04381700 0.50512200C -1.34285300 -0.86013300 0.01111000C -2.06996000 -0.52719200 -1.13355500C -1.84370700 -1.96453200 0.69637600C -3.21003100 -1.20828300 -1.54739800C -2.97574900 -2.67524400 0.32453200C -3.67278200 -2.28930100 -0.81115300F 0.46815800 -2.40105000 -1.38923700F 2.82011300 -3.47365200 -1.96940400F 5.11724800 -2.50203100 -0.86454200F 4.98846600 -0.39247200 0.87114500F 2.63208700 0.72021800 1.47423900F -1.67359000 0.48164300 -1.93454400F -3.86058100 -0.83387600 -2.65515100F -4.76679100 -2.95292700 -1.19305800F -3.39379300 -3.72571400 1.04416300F -1.19332600 -2.43192100 1.79739300F -1.85082800 2.01075300 1.49267200F -1.98408300 4.56641900 0.75709500F -0.30065400 5.55260100 -1.16191900F 1.52435300 3.88981700 -2.32511800F 1.68429500 1.34070200 -1.62676700

(1,2)-2-butyne

B3LYP/6-311++G(d,p) optimized geometry (Å).

E = -2364.90422231E0 = -2364.666423H = -2364.631316G = -2364.732634

0 1B -0.21747100 -0.09558000 0.74314000C -0.40341900 0.17935800 2.36244800C -0.06410100 1.40934400 2.30289300C 0.00872100 2.79703100 2.75191200H -0.32472900 2.77592600 3.79881700H -0.67400200 3.44320200 2.19613700H 1.01985600 3.20702200 2.72394000C 0.56717000 1.41639600 0.30517600C 1.95561800 1.56268200 0.52437600C 0.02771000 2.36348500 -0.58727500C 2.73483000 2.54465800 -0.06517300C 0.77861800 3.35693900 -1.19844000C 2.14110900 3.45077100 -0.93668300C -1.02149600 -0.60919400 3.48163400H -0.25113800 -1.16099300 4.02047900H -1.54662600 0.04090800 4.18432800H -1.72611300 -1.33849300 3.07888000C 0.86735800 -1.24121500 0.30774300C 1.35635100 -1.26982600 -1.00112700C 1.39061800 -2.22846100 1.13578800C 2.28611200 -2.18756600 -1.46325700C 2.32251300 -3.17314000 0.71722800C 2.77678000 -3.15317800 -0.59223500C -1.74585900 -0.31380400 0.14772900C -2.12035000 -1.41202000 -0.63749000C -2.82609500 0.51487500 0.48489100C -3.42168900 -1.65576000 -1.07050500C -4.13551200 0.30855300 0.07457600C -4.44165300 -0.78954000 -0.71576000F -1.26568600 2.33642800 -0.92152600F 0.21140800 4.21691200 -2.04739200F 2.86815100 4.40219200 -1.50949600F 4.04107100 2.63708100 0.19900200F 2.59517200 0.73954000 1.36767400F 0.89382800 -0.37597100 -1.90453600F 2.70406400 -2.16210500 -2.73462800F 3.67117100 -4.05032800 -1.01308700F 2.78585600 -4.09603400 1.56989100F 1.00646100 -2.31923700 2.42778200F -1.22374300 -2.33779100 -1.03034000F -2.64313100 1.61680500 1.24972500F -5.10361000 1.16096000 0.43532400F -5.69432400 -1.00770200 -1.11992000F -3.69223500 -2.72875100 -1.82280500

S49

Transition States (B(C6F5)3)

(1,1)-phenylacetylene

B3LYP/6-311++G(d,p) optimized geometry (Å).

E = -2517.36889458E0 = -2517.108529H = -2517.071399G = -2517.181451

0 1C 2.41230500 0.48725600 -1.10020400C 1.29612300 0.26776200 -0.59940100C -0.93407500 1.48158100 0.01783200C -0.27605500 2.60129800 0.53081800C -2.23029500 1.73100400 -0.43276200C -0.82943300 3.87214400 0.58587400C -2.82514100 2.98880700 -0.39513500C -2.12031000 4.06925300 0.11412100C 0.13125200 -0.60054200 1.49374900C -0.52132900 -0.19871900 2.66046900C 1.07316400 -1.61266000 1.67964800C -0.25432200 -0.74413100 3.91179000C 1.37227600 -2.18326600 2.90875500C 0.70216500 -1.74136900 4.04054100B -0.18812300 0.01186000 -0.01028200C -0.92557200 -1.08414600 -0.99749500C -1.70121200 -2.15156700 -0.54462200C -0.83940500 -0.99267400 -2.38413700C -2.32049200 -3.06250200 -1.39445300C -1.43500200 -1.87431100 -3.27311900C -2.18478600 -2.92811600 -2.76908800F -3.00029700 0.73775900 -0.92085500F -4.07351900 3.16357000 -0.84446600F -2.67620200 5.28252100 0.15397800F -0.13743500 4.90169600 1.09077600F 0.97292300 2.47028300 1.03736900F -1.91721100 -2.33771400 0.77123000F -3.05207800 -4.06517400 -0.89722200F -2.77259300 -3.79510400 -3.59600500F -1.29857800 -1.71719300 -4.59533800F -0.14513900 0.04235000 -2.95097000F 1.74979800 -2.10918300 0.61271500F 2.29512200 -3.14921500 3.00949000F 0.97101400 -2.27176700 5.23534700F -0.91719700 -0.31902200 4.99290200F -1.48900100 0.73623400 2.62661000C 3.79772800 0.63110200 -1.46659600C 4.72066500 -0.30782000 -0.98070900C 4.22294800 1.69365100 -2.27646800C 6.06639100 -0.16876400 -1.30004800H 4.37816300 -1.12936400 -0.36381500C 5.56980900 1.81279400 -2.59725700H 3.50579000 2.41919700 -2.64146000C 6.49058400 0.88586600 -2.10829700H 6.78297800 -0.88814200 -0.92226900H 5.90177700 2.63195300 -3.22361300H 7.54043900 0.98581900 -2.35797700H 1.49711700 0.55927500 -1.91235700

(1,2)-phenylacetylene

B3LYP/6-311++G(d,p) optimized geometry (Å).

E = -2517.36926165E0 = -2517.105918H = -2517.069455G = -2517.175440

0 1B 0.39904100 0.02961300 -0.58115800C -0.34046300 0.12626000 -2.01613700C -1.58024600 0.09111700 -1.64637700C -1.11875100 -0.17711100 0.28914100C -1.62786400 -1.46659100 0.56851200C -1.70452500 0.85824400 1.05347400C -2.60137600 -1.71930000 1.51560100C -2.67649900 0.64470200 2.01167800C -3.12279400 -0.65526300 2.24731100C 1.42636100 -1.23758000 -0.43958400C 1.58268100 -2.06896600 0.67041600C 2.32209100 -1.49604700 -1.48056700C 2.52898200 -3.08483000 0.74589800C 3.28252000 -2.49843900 -1.44799000C 3.38656800 -3.30415500 -0.32232300C 1.17881400 1.40481200 -0.15570300C 1.61176700 1.62244100 1.15296000C 1.53345900 2.41014000 -1.05520200C 2.33759200 2.73395900 1.55660400C 2.26147100 3.54002000 -0.69632900C 2.66848000 3.70429300 0.61965800F -1.35886400 2.13037500 0.82969500F -3.20737900 1.65637000 2.70183200F -4.06666400 -0.87424500 3.15062200F -3.05586800 -2.95528000 1.73388400F -1.19811400 -2.51511100 -0.14037300F 0.78625500 -1.93210600 1.75243700F 2.61778600 -3.85373800 1.83845900F 4.30339400 -4.27370200 -0.26705300F 4.10994000 -2.68907900 -2.48343800F 2.29680100 -0.73310300 -2.59605200F 1.30066200 0.72424100 2.11156500F 1.17238400 2.33573400 -2.35484700F 2.57229300 4.46964200 -1.60921800F 3.36811500 4.78262100 0.98198500F 2.71349600 2.88335400 2.83298900C -2.99486500 0.16707600 -1.88242700C -3.74271700 -0.99912800 -2.13336400C -3.63214300 1.42231300 -1.91138000C -5.09761000 -0.90462000 -2.42391500H -3.24961500 -1.96363300 -2.11390800C -4.98821000 1.50531400 -2.20150700H -3.05313600 2.31730200 -1.71820600C -5.72040500 0.34464800 -2.45573500H -5.66879700 -1.80215100 -2.62953800H -5.47439500 2.47311800 -2.23319900H -6.77836900 0.41345700 -2.68172600H 0.00706700 0.23025400 -3.03627900

S50

Transition States (Be(C6F5)2)

(1,1)-2-butyne

B3LYP/6-311++G(d,p) optimized geometry (Å).

E = -1626.80080089E0 = -1626.616626H = -1626.589609G = -1626.676172

0 1C 0.635940 3.771669 -0.145736C 0.236818 2.599489 -0.032539C 1.384065 5.007887 -0.344650H 1.352659 5.645707 0.542154H 2.422532 4.727232 -0.537927H 1.009153 5.567587 -1.205078Be 0.058085 0.835605 -0.007370C -1.174709 3.730310 0.123820H -1.739676 3.578403 -0.789479H -1.602977 3.228272 0.986032H -1.113523 4.793464 0.364293C -1.558112 0.174737 -0.095078C -2.513697 0.397999 0.881657C -1.962848 -0.662537 -1.125381C -3.785628 -0.158842 0.874296C -3.221389 -1.247476 -1.194185C -4.138527 -0.993365 -0.179848C 1.564722 -0.044209 0.090868C 1.614338 -1.359987 0.545239C 2.796713 0.482585 -0.278346C 2.784181 -2.105783 0.631295C 3.995856 -0.214307 -0.218769C 3.985390 -1.524981 0.242418F -2.207224 1.215958 1.935858F -4.669686 0.093176 1.851855F -5.357046 -1.543617 -0.221715F -3.567882 -2.045904 -2.213625F -1.102613 -0.934353 -2.137420F 0.481434 -1.978980 0.945725F 2.775593 -3.368055 1.081487F 5.124300 -2.220727 0.314401F 5.154421 0.350886 -0.593719F 2.877682 1.764705 -0.738499

(1,2)-2-butyne

B3LYP/6-311++G(d,p) optimized geometry (Å).

E = -1626.82572934E0 = -1626.639686H = -1626.613528G = -1626.697244

0 1C 0.741713 4.199240 0.713908C -0.051962 2.960650 0.464624C -1.265660 2.638515 0.251046C -2.672100 3.077906 0.086273H -3.326595 2.655787 0.851051H -2.675710 4.168665 0.187987H -3.069249 2.819910 -0.897101C -1.510835 0.619134 0.028038C -1.890885 0.188948 -1.242123C -2.847493 -0.792989 -1.447997C -3.467480 -1.370904 -0.342319C -3.124945 -0.965486 0.945230C -2.162429 0.019624 1.104324Be 0.163238 1.281630 0.250599C 1.574196 0.278896 0.159844C 1.586379 -1.081039 0.450590C 2.721375 -1.878301 0.370562C 3.922193 -1.301335 -0.025771C 3.966961 0.054024 -0.330722C 2.802109 0.803868 -0.229155H 0.125938 5.102563 0.708091H 1.247193 4.124511 1.679874H 1.525569 4.292461 -0.039866F 2.902951 2.119191 -0.543180F 5.124256 0.609939 -0.715585F 5.027845 -2.045692 -0.113627F 2.678362 -3.184377 0.667031F 0.445514 -1.698508 0.844670F -1.304530 0.734028 -2.325117F -3.179800 -1.194873 -2.678444F -4.391511 -2.312257 -0.517800F -3.722078 -1.531365 1.997845F -1.848445 0.393367 2.358589

S51

Transition States (Be(C6F5)2)

(1,1)-diphenylacetylene

B3LYP/6-311++G(d,p) optimized geometry (Å).

E = -2010.37958296E0 = -2010.089185H = -2010.056301G = -2010.158726

0 1C -2.522870 0.061172 -0.312602C -1.291116 -0.040059 -0.077088Be 0.476351 0.131756 -0.139180C -3.838264 0.258059 -0.849277C -4.927113 0.613247 -0.038203C -4.012900 0.126509 -2.238046C -6.171381 0.839172 -0.612889H -4.792476 0.705741 1.032392C -5.260072 0.369309 -2.802464H -3.171821 -0.158142 -2.858243C -6.339374 0.722096 -1.993398H -7.011291 1.110801 0.015522H -5.390002 0.275137 -3.874075H -7.311649 0.902828 -2.436878C -2.544264 -1.094432 3.450850C -2.693635 -2.473950 3.296186C -2.528776 -3.073988 2.044477C -2.213997 -2.296650 0.938999C -2.064315 -0.906355 1.092105C -2.234465 -0.303485 2.351067H -2.664407 -0.639325 4.426726H -2.936025 -3.087222 4.156696H -2.642288 -4.146050 1.936280H -2.071456 -2.741711 -0.038048H -2.093435 0.765621 2.450112C 1.078954 1.771874 -0.087640C 0.681836 2.680855 0.880369C 1.995737 2.262133 -1.007528C 1.147809 3.985953 0.962019C 2.494687 3.559028 -0.982816C 2.065480 4.426334 0.015453C 1.420689 -1.338936 -0.234018C 1.059309 -2.424727 -1.018668C 2.613457 -1.498761 0.461826C 1.806210 -3.590013 -1.131499C 3.401902 -2.641600 0.393281C 2.992084 -3.695522 -0.414919F 0.732564 4.822336 1.927416F -0.214699 2.293806 1.835538F 2.531024 5.680242 0.063557F 3.375113 3.988797 -1.899162F 2.437889 1.456657 -2.004393F -0.097413 -2.379053 -1.741636F 1.404944 -4.608918 -1.909904F 3.731393 -4.807686 -0.498908F 4.542343 -2.748270 1.091189F 3.055263 -0.508831 1.273276

(1,2)-diphenylacetylene

B3LYP/6-311++G(d,p) optimized geometry (Å).

E = -2010.39169960E0 = -2010.100067H = -2010.067558G = -2010.168625

0 1C -0.393515 1.838416 0.272162C -1.415338 1.088628 0.053762Be 0.437533 0.355644 0.155506C 2.100366 -0.119494 0.033210C 2.948823 0.419476 -0.924526C 2.673795 -1.071102 0.865118C 4.282015 0.052924 -1.063048F 2.473834 1.351144 -1.786845C 4.000834 -1.472124 0.776155F 1.919100 -1.651686 1.831880C 4.809377 -0.902052 -0.200964F 5.062619 0.598877 -2.006334F 4.510969 -2.391746 1.607329F 6.089811 -1.270609 -0.310964C -0.882338 -0.894454 0.056084C -1.051263 -1.585810 -1.143634C -1.276972 -1.560715 1.215542C -1.576877 -2.865416 -1.205523F -0.692850 -0.994406 -2.298512C -1.806135 -2.842437 1.199494F -1.157720 -0.949477 2.407742C -1.956833 -3.494636 -0.021135F -1.719428 -3.506204 -2.369840F -2.171462 -3.457760 2.328028F -2.467281 -4.723218 -0.058463C -2.844927 0.977441 -0.202308C -3.329190 1.089480 -1.515126C -3.748895 0.836898 0.862523C -4.699624 1.066855 -1.754120H -2.629912 1.196439 -2.335556C -5.116970 0.816232 0.613285H -3.374123 0.750607 1.875470C -5.594064 0.928744 -0.693046H -5.068743 1.157102 -2.769125H -5.811494 0.713215 1.438967H -6.661070 0.909543 -0.883036C -0.153484 3.272264 0.428759C 1.144882 3.734577 0.686194C -1.199823 4.206685 0.337078C 1.393451 5.094289 0.850081H 1.955544 3.019833 0.756373C -0.948859 5.563951 0.500043H -2.208655 3.864473 0.138191C 0.348230 6.011203 0.757425H 2.402287 5.437454 1.048480H -1.763890 6.275176 0.426900H 0.541587 7.070427 0.884201

S52

Reactants

Et-Mg-Et

B3LYP/6-311++G(d,p) optimized geometry (Å).

E = -358.570993592E0 = -358.444718H = -358.434955G = -358.480721

0 1C 0.000000 2.121256 0.303729C -1.136569 2.819669 -0.472654H 0.969320 2.461134 -0.086573H -0.014451 2.457068 1.349925H -1.070520 3.914589 -0.422968H -1.131103 2.553905 -1.535665H -2.125105 2.547982 -0.085810C 0.000000 -2.121256 0.303729C 1.136569 -2.819669 -0.472654H -0.969320 -2.461134 -0.086573H 0.014451 -2.457068 1.349925H 1.070520 -3.914589 -0.422968H 1.131103 -2.553905 -1.535665H 2.125105 -2.547982 -0.085810Mg 0.000000 0.000000 0.299107

Ph-Mg-Ph

B3LYP/6-311++G(d,p) optimized geometry (Å).

E = -663.495325150E0 = -663.316833H = -663.304151G = -663.357733

0 1C -2.095200 0.000015 0.000016C -2.841858 0.845793 0.845754C -2.841813 -0.845786 -0.845739C -4.237989 0.851065 0.851029H -2.334414 1.526583 1.526510C -4.237944 -0.851100 -0.851049H -2.334333 -1.526564 -1.526482C -4.940728 -0.000027 -0.000018H -4.775941 1.517746 1.517679H -4.775860 -1.517797 -1.517711H -6.025413 -0.000043 -0.000032C 2.095200 0.000043 -0.000023C 2.841877 0.845770 -0.845795C 2.841795 -0.845732 0.845775C 4.238008 0.851016 -0.851065H 2.334446 1.526539 -1.526582C 4.237926 -0.851070 0.851091H 2.334301 -1.526469 1.526548C 4.940728 -0.000050 0.000024H 4.775974 1.517658 -1.517742H 4.775828 -1.517747 1.517785H 6.025413 -0.000085 0.000041Mg 0.000000 0.000047 -0.000001

S53

Products (Et-Mg-Et)

(1,1)-trans-2-butene

B3LYP/6-311++G(d,p) optimized geometry (Å).

E = -515.860152415E0 = -515.621591H = -515.606429G = -515.664358

0 1C 1.195448 0.036344 0.025198C 1.547286 1.325121 -0.748019C 1.898016 0.053404 1.398230H 1.597479 0.903482 2.019271H 1.702107 -0.848598 1.986965H 2.994392 0.120875 1.277746C 0.987773 2.634205 -0.176085H 1.284231 3.492332 -0.786391H -0.111330 2.630540 -0.148037H 1.339999 2.822321 0.841522C -3.034168 -0.244211 0.631942C -3.943756 0.059637 -0.577296H -3.299223 0.423461 1.463482H -3.248975 -1.255707 1.003747H -5.010834 -0.038410 -0.337628H -3.800117 1.078846 -0.953177H -3.748804 -0.615946 -1.417752H 1.205947 1.227752 -1.786958H 2.646679 1.422292 -0.809748C 1.699951 -1.170166 -0.794888H 2.802589 -1.127985 -0.860922H 1.343827 -1.077878 -1.829364C 1.310230 -2.558700 -0.271528H 1.712575 -3.350171 -0.910627H 1.684174 -2.737048 0.740089H 0.219676 -2.695215 -0.247754Mg -0.939923 -0.099062 0.319185

(1,2)-trans-2-butene

B3LYP/6-311++G(d,p) optimized geometry (Å).

E = -515.860387111E0 = -515.621262H = -515.606242G = -515.664118

0 1C 0.896191 0.925755 0.341201C 1.652109 -0.072485 -0.570129C 1.082863 -1.509748 -0.504858C 1.288915 2.391587 0.061874H 1.049811 2.688623 -0.967023H 0.763086 3.088820 0.724292H 2.361317 2.587329 0.201940C 3.176048 -0.084915 -0.327057H 3.682674 -0.790423 -0.995013H 3.614322 0.900165 -0.501939H 3.412238 -0.368438 0.703325C 1.139098 -2.192914 0.867037H 1.613988 -2.135879 -1.231884H 0.036899 -1.494788 -0.853582H 0.705826 -3.195901 0.820211H 2.167846 -2.296855 1.220481H 0.589494 -1.631590 1.629283C -3.342322 0.479405 0.223871C -3.933087 -0.736273 -0.521056H -3.747293 1.403960 -0.210661H -3.699856 0.477857 1.263058H -5.030772 -0.753485 -0.496887H -3.643221 -0.750527 -1.577698H -3.595603 -1.685405 -0.089931H 1.503968 0.258896 -1.609039H 1.178570 0.707111 1.383070Mg -1.226848 0.649005 0.263558

S54

Products (Et-Mg-Et)

(1,1)-2-butyne

B3LYP/6-311++G(d,p) optimized geometry (Å).

E = -514.643847112E0 = -514.428479H = -514.413460G = -514.470863

0 1C -0.963670 0.263673 -0.007190C -1.948093 -0.659534 0.011980C -1.285905 1.755110 -0.004030H -1.881352 2.014621 0.881956H -1.910292 2.012165 -0.870579C -3.432148 -0.347018 0.038081H -3.905632 -0.782195 0.927155H -3.641394 0.722116 0.036797H -3.938345 -0.790796 -0.828407C -1.676589 -2.149480 0.009876H -2.101627 -2.636518 0.896472H -0.605513 -2.388805 -0.006383C 3.051966 -1.052723 -0.077833C 4.143315 0.023491 0.105333H 3.219560 -1.581293 -1.026528H 3.168777 -1.823195 0.696918H 5.158128 -0.394990 0.076309H 4.098553 0.790386 -0.676021H 4.047672 0.546034 1.063741H -2.129256 -2.639120 -0.861485C -0.042848 2.652449 -0.025886H 0.591031 2.474254 0.851860H 0.561620 2.471488 -0.923652H -0.303569 3.714915 -0.023288Mg 1.041289 -0.385406 -0.043071

(1,2)-2-butyne

B3LYP/6-311++G(d,p) optimized geometry (Å).

E = -514.641756551E0 = -514.426412H = -514.411221G = -514.469593

0 1C 0.595826 0.963641 -0.013695C 1.682136 0.185985 -0.215348C 0.765631 2.450879 0.274143H 1.340803 2.964565 -0.507796H -0.191987 2.975161 0.349030H 1.292591 2.628070 1.220862C 3.111764 0.699877 -0.182511H 3.748795 0.153260 -0.886197H 3.171875 1.760930 -0.429898H 3.559653 0.576472 0.811346C 1.578093 -1.306268 -0.477042C 2.198413 -2.190718 0.617935H 2.059506 -1.545279 -1.435429H 0.522471 -1.597142 -0.601821H 2.078705 -3.251669 0.380328H 3.268302 -1.996355 0.727560H 1.725294 -2.002146 1.586245C -3.230642 -0.806016 -0.198952C -4.411314 0.105544 0.198144H -3.233670 -1.701650 0.437710H -3.391431 -1.185337 -1.217544H -5.380189 -0.407271 0.134239H -4.318941 0.472558 1.226483H -4.482159 0.989211 -0.445924Mg -1.292422 0.045757 -0.113770

S55

Products (Et-Mg-Et)

(1,1)-E-stilbene

B3LYP/6-311++G(d,p) optimized geometry (Å).

E = -899.426698479E0 = -899.082105H = -899.060792G = -899.134822

0 1C 0.745573 0.549679 -1.009959C 1.447115 1.526212 -1.975042C 2.093596 2.754868 -1.320369H 2.589727 3.385525 -2.064240H 1.342175 3.382470 -0.822798H 2.838936 2.480274 -0.570058C -1.606632 2.717221 1.826714C -2.834217 3.486861 1.296677H -0.904344 3.424931 2.287949H -1.918813 2.053997 2.644849H -3.344698 4.060909 2.081506H -2.563056 4.203096 0.512651H -3.584437 2.815112 0.863874H 0.700681 1.881744 -2.694906H 2.204691 1.012392 -2.590906C -0.078720 -0.474958 -1.858298H 0.585314 -1.245638 -2.275696H -0.490294 0.069340 -2.715654C -1.231365 -1.151040 -1.146913C -2.419046 -0.443623 -0.899138C -1.153559 -2.472932 -0.696104C -3.481883 -1.026347 -0.208373H -2.537735 0.561663 -1.300315C -2.213035 -3.061733 -0.006286H -0.249575 -3.042495 -0.882028C -3.378326 -2.339709 0.247038H -4.391569 -0.460807 -0.039358H -2.127203 -4.087755 0.334782H -4.201430 -2.798497 0.782788C 1.700840 -0.175421 -0.073787C 1.223034 -0.813517 1.090526C 3.088864 -0.255679 -0.294304C 2.063954 -1.485337 1.974251H 0.156274 -0.812984 1.309078C 3.938464 -0.919746 0.589688H 3.521191 0.205797 -1.173276C 3.434955 -1.539608 1.730900H 1.646304 -1.960062 2.855638H 5.003193 -0.951175 0.382258H 4.097442 -2.050484 2.420159Mg -0.534204 1.551792 0.420865

(1,2)-E-stilbene

B3LYP/6-311++G(d,p) optimized geometry (Å).

E = -899.432326407E0 = -899.087410H = -899.065995G = -899.141504

0 1C 0.409596 -0.474423 -0.543715C -0.651068 -1.135114 0.350554C -0.741124 -2.669863 0.115032C -1.156030 -3.109909 -1.292037H -1.450121 -3.086852 0.838010H 0.235154 -3.112885 0.359188H -1.228311 -4.199793 -1.345860H -2.131552 -2.698817 -1.562961H -0.436206 -2.792413 -2.051767C 4.456694 -1.699088 -0.053741C 5.165323 -1.239879 1.237633H 5.010115 -1.327171 -0.926479H 4.506379 -2.793481 -0.130913H 6.210463 -1.573115 1.280812H 5.178156 -0.149074 1.332452H 4.674636 -1.629323 2.136331H -0.338414 -1.031320 1.397728H 0.174305 -0.629127 -1.601460C 0.707827 0.974851 -0.324484C 1.214361 1.761142 -1.384102C 0.597211 1.608087 0.931374C 1.595331 3.086373 -1.200488H 1.291759 1.320494 -2.375344C 0.977833 2.936046 1.113318H 0.191515 1.062514 1.775791C 1.483769 3.687074 0.053893H 1.971810 3.655939 -2.043781H 0.869583 3.389005 2.093374H 1.776478 4.720240 0.199356C -2.048582 -0.507195 0.280469C -2.889590 -0.577496 1.398846C -2.543498 0.114318 -0.870059C -4.181377 -0.057131 1.370163H -2.524405 -1.043890 2.309857C -3.837032 0.634941 -0.907213H -1.910750 0.206881 -1.744659C -4.662877 0.550413 0.211322H -4.809082 -0.121058 2.252575H -4.196423 1.114298 -1.811516H -5.666420 0.960050 0.184022Mg 2.435060 -1.128333 -0.290446

S56

Products (Et-Mg-Et)

(1,1)-diphenylacetylene

B3LYP/6-311++G(d,p) optimized geometry (Å).

E = -898.214769767E0 = -897.893048H = -897.872941G = -897.942475

0 1C 0.099848 1.430569 -0.099137C -0.570936 0.251327 -0.022062C 4.252435 1.162587 -0.803440C 5.218323 0.672500 0.295468H 4.507792 2.196192 -1.075941H 4.423054 0.579795 -1.719246H 6.272316 0.735760 -0.007043H 5.122775 1.257687 1.217422H 5.032347 -0.373266 0.564757C -2.059308 0.080555 -0.004580C -2.674077 -0.699965 0.987538C -2.879715 0.678476 -0.971892C -4.056735 -0.857870 1.025093H -2.059585 -1.181881 1.740380C -4.263662 0.513884 -0.942834H -2.425534 1.266225 -1.761092C -4.858583 -0.251392 0.058256H -4.509133 -1.456731 1.808172H -4.876698 0.981445 -1.705816H -5.935122 -0.378243 0.082770C -0.598687 2.773466 -0.083819H -0.644920 3.166833 -1.109385H -1.638770 2.693718 0.254823C 0.129830 3.807660 0.789104H 0.189999 3.470231 1.828192H 1.152985 3.981743 0.436085H -0.388902 4.770962 0.779745C 0.218490 -1.021606 0.032018C -0.062966 -2.097044 -0.829183C 1.303572 -1.165568 0.918416C 0.732924 -3.237068 -0.837618H -0.907473 -2.023470 -1.504925C 2.102833 -2.313804 0.912221H 1.464901 -0.404219 1.677859C 1.825560 -3.349149 0.026817H 0.504810 -4.044115 -1.525439H 2.924247 -2.401045 1.614694H 2.440618 -4.241517 0.017726Mg 2.182951 1.094878 -0.359660

(1,2)-diphenylacetylene

B3LYP/6-311++G(d,p) optimized geometry (Å).

E = -898.212937711E0 = -897.891237H = -897.870093G = -897.944321

0 1C 0.711276 -0.052000 -0.075192C -0.111142 -1.123118 0.010328C 0.430696 -2.545296 0.013508C 0.075263 -3.349667 -1.247340H 0.057723 -3.085523 0.891942H 1.524183 -2.520567 0.128021H 0.484156 -4.362595 -1.192970H -1.007333 -3.429403 -1.369577H 0.476676 -2.867272 -2.143426C 4.918506 -0.412614 -0.217785C 5.612314 -1.065146 0.996501H 5.320133 0.598747 -0.367060H 5.188246 -0.961028 -1.130581H 6.703805 -1.102911 0.884950H 5.410849 -0.520960 1.925692H 5.277785 -2.096152 1.156028C 0.232830 1.353647 -0.025308C 0.559965 2.255344 -1.054601C -0.471809 1.864177 1.080218C 0.176658 3.593687 -0.999894H 1.105420 1.892881 -1.922396C -0.842500 3.204616 1.143607H -0.728575 1.196376 1.894551C -0.525674 4.077647 0.102808H 0.430827 4.259652 -1.817741H -1.384985 3.569264 2.009566H -0.817196 5.120572 0.152985C -1.607811 -1.034256 0.060983C -2.333528 -1.656952 1.087755C -2.325326 -0.345196 -0.927071C -3.723601 -1.577204 1.136895H -1.806019 -2.194095 1.868731C -3.715591 -0.273815 -0.886596H -1.784952 0.135995 -1.733267C -4.421513 -0.886645 0.147441H -4.261469 -2.055029 1.948691H -4.248284 0.261624 -1.664998H -5.503692 -0.828520 0.181201Mg 2.810718 -0.264526 -0.148158

S57

Products (Ph-Mg-Ph)

(1,1)-trans-2-butene

B3LYP/6-311++G(d,p) optimized geometry (Å).

E = -820.784488402E0 = -820.494717H = -820.476273G = -820.543993

0 1C 1.637262 -1.241368 0.283880C 2.030029 -1.842432 1.642034H 1.501293 -1.391435 2.488582H 1.796473 -2.911086 1.662429H 3.103999 -1.740863 1.860445C 2.152120 -2.120815 -0.880071H 1.724338 -1.805744 -1.839024H 1.781715 -3.141233 -0.726501C 3.684131 -2.171778 -1.033488H 3.970009 -2.809655 -1.875674H 4.098875 -1.176083 -1.211838H 4.163172 -2.575969 -0.137966C 1.948010 0.222490 0.143571C 1.870011 0.880921 -1.111660C 2.237240 1.048818 1.255597C 2.052236 2.254221 -1.238295H 1.680482 0.303665 -2.010853C 2.414755 2.424858 1.124142H 2.337959 0.607999 2.239176C 2.322419 3.043746 -0.120284H 1.988968 2.709048 -2.221345H 2.638426 3.015466 2.006592H 2.464413 4.113336 -0.219569C -2.488962 -0.303674 0.019126C -2.946127 1.025437 -0.089748C -3.483245 -1.302163 0.058585C -4.304704 1.341061 -0.153803H -2.234486 1.847121 -0.126488C -4.845093 -1.000317 -0.005407H -3.203994 -2.350819 0.141987C -5.259203 0.326144 -0.111515H -4.617887 2.377116 -0.236651H -5.580819 -1.797792 0.028042H -6.315839 0.566693 -0.160871Mg -0.451865 -0.779222 0.136962

(1,2)-trans-2-butene

B3LYP/6-311++G(d,p) optimized geometry (Å).

E = -820.786906804E0 = -820.497308H = -820.478893G = -820.546685

0 1C 1.767274 -1.857921 -0.295907C 2.722175 -0.839994 0.398019C 2.186017 0.573274 0.210654C 2.003236 -3.303963 0.167832H 1.791646 -3.426363 1.236863H 1.353307 -4.005049 -0.366060H 3.034260 -3.651491 0.007643C 4.196519 -0.964911 -0.035682H 4.837156 -0.256157 0.498504H 4.570160 -1.971294 0.166777H 4.311791 -0.782196 -1.108112C -2.234557 -0.513647 -0.068746C -3.225023 -1.514436 -0.149299C -2.705284 0.810025 0.050288C -4.590387 -1.222081 -0.113653H -2.938882 -2.560875 -0.243050C -4.066771 1.118514 0.085527H -1.997841 1.633567 0.117994C -5.015218 0.100020 0.003731H -5.320415 -2.023181 -0.177830H -4.388237 2.151647 0.177060H -6.074207 0.334199 0.031402C 2.235615 1.221762 -1.035020C 1.552355 1.244248 1.268825C 1.678401 2.487074 -1.210854H 2.720705 0.735405 -1.874079C 0.993025 2.512549 1.095491H 1.517097 0.774453 2.247786C 1.054791 3.138965 -0.146317H 1.733450 2.967550 -2.181649H 0.516220 3.008849 1.933489H 0.624077 4.123882 -0.285097H 2.684739 -1.043572 1.476603H 1.984829 -1.808583 -1.376255Mg -0.189405 -1.011471 -0.135944

S58

Products (Ph-Mg-Ph)

(1,1)-2-butyne

B3LYP/6-311++G(d,p) optimized geometry (Å).

E = -819.570819699E0 = -819.304583H = -819.286331G = -819.354127

0 1C 1.304506 0.875862 0.005500C 1.733889 2.154654 -0.033124C 3.187707 2.578938 0.008191H 3.361804 3.262820 0.847782H 3.865766 1.732397 0.109424H 3.459458 3.130391 -0.900220C -2.779240 -0.085502 -0.029539C -3.600096 0.111908 1.099647C -3.413159 -0.621173 -1.169307C -4.960502 -0.202573 1.097590H -3.180804 0.522297 2.016437C -4.772331 -0.940300 -1.186073H -2.843497 -0.801366 -2.078955C -5.550811 -0.730863 -0.049101H -5.558276 -0.036096 1.988272H -5.222905 -1.351777 -2.083874H -6.607182 -0.977332 -0.056604C 2.244433 -0.276320 0.042290C 2.389688 -1.054343 1.204603C 2.965002 -0.674929 -1.097731C 3.230412 -2.164933 1.233714H 1.845473 -0.771410 2.100930C 3.800521 -1.789915 -1.072451H 2.862829 -0.099443 -2.011933C 3.939994 -2.541200 0.093785H 3.330710 -2.738382 2.149193H 4.344931 -2.072314 -1.967513H 4.589035 -3.409260 0.113239C 0.783551 3.330083 -0.098748H 0.972047 3.942938 -0.988415H -0.269461 3.025357 -0.130493H 0.908619 3.991320 0.767160Mg -0.739994 0.402792 -0.014158

(1,2)-2-butyne

B3LYP/6-311++G(d,p) optimized geometry (Å).

E = -819.569834181E0 = -819.303488H = -819.285283G = -819.351345

0 1C 1.621793 -1.937431 0.092615C 2.623807 -1.028066 0.013126C 1.858378 -3.428923 0.056193H 1.372875 -3.915138 0.910651H 1.399143 -3.871248 -0.836583H 2.910243 -3.736655 0.064365C 4.107368 -1.308203 -0.149948H 4.686147 -0.828490 0.647199H 4.328504 -2.374609 -0.132790H 4.490540 -0.912199 -1.097033C -2.274778 -0.415117 -0.031512C -2.727787 0.919901 -0.031122C -3.276822 -1.404101 -0.116378C -4.082444 1.250431 -0.108458H -2.011214 1.736397 0.029354C -4.635655 -1.090189 -0.192536H -3.004874 -2.458391 -0.123924C -5.042434 0.242814 -0.188582H -4.389351 2.291994 -0.106262H -5.374717 -1.883070 -0.255222H -6.096252 0.493814 -0.247854C 2.264452 0.425501 0.064619C 2.705215 1.339152 -0.909915C 1.427624 0.924056 1.084081C 2.294662 2.667927 -0.890265H 3.356754 0.996548 -1.705400C 1.014346 2.260967 1.104423H 1.175446 0.273514 1.918199C 1.440738 3.135975 0.111664H 2.635241 3.344229 -1.666860H 0.380160 2.614516 1.909799H 1.125925 4.172941 0.122002Mg -0.241278 -0.939360 0.093528

S59

Products (Ph-Mg-Ph)

(1,1)-E-stilbene

B3LYP/6-311++G(d,p) optimized geometry (Å).

E = -1204.35276271E0 = -1203.957624H = -1203.932953G = -1204.015433

0 1C 1.353998 -0.383421 -0.202481C 1.244429 -1.768934 -0.903680H 1.539750 -1.647282 -1.946910C 2.193940 0.571209 -1.025856C 3.464572 1.017476 -0.623467C 1.740092 1.013070 -2.284010C 4.229575 1.863068 -1.425753H 3.864692 0.695564 0.330414C 2.503506 1.849067 -3.093406H 0.763162 0.694420 -2.641928C 3.756686 2.286481 -2.665652H 5.206792 2.184096 -1.080197H 2.113026 2.169123 -4.053580H 4.351169 2.946078 -3.287395C -2.462564 1.402914 0.160211C -2.416466 2.793664 0.387397C -3.748487 0.833815 0.067125C -3.571550 3.567619 0.516968H -1.458434 3.303413 0.468430C -4.912366 1.595264 0.193707H -3.859430 -0.233750 -0.110017C -4.825944 2.967777 0.420700H -3.492913 4.636010 0.692899H -5.884960 1.118909 0.115853H -5.726814 3.563831 0.521145C 1.685830 -0.414738 1.265885C 1.916190 -1.592909 2.002534C 1.708794 0.793699 2.005323C 2.155183 -1.567089 3.378439H 1.915654 -2.554770 1.504710C 1.950498 0.821115 3.372224H 1.550222 1.733710 1.483574C 2.175644 -0.364595 4.076209H 2.329865 -2.501056 3.902534H 1.959053 1.772607 3.893154H 2.358162 -0.346755 5.144250C -0.141023 -2.398268 -0.897610C -0.684017 -2.927368 -2.077173C -0.942772 -2.432030 0.259683C -1.967256 -3.469368 -2.105094H -0.090449 -2.909407 -2.985394C -2.231643 -2.975338 0.233251H -0.532825 -2.100436 1.210515C -2.748735 -3.493926 -0.950134H -2.361191 -3.867314 -3.033827H -2.821256 -2.998149 1.142897H -3.747905 -3.912971 -0.973833H 1.968247 -2.485539 -0.487900Mg -0.708359 0.267513 -0.026787

(1,2)-E-stilbene

B3LYP/6-311++G(d,p) optimized geometry (Å).

E = -1204.35625949E0 = -1203.961036H = -1203.936267G = -1204.020434

0 1C 0.570812 0.581991 0.410146C 1.316389 -0.492095 -0.416864C 0.593667 -1.823784 -0.206622C -3.621865 0.230492 0.066484C -4.316757 1.456959 0.023533C -4.417390 -0.932784 0.044780C -5.710325 1.522719 -0.039559H -3.769019 2.397159 0.037976C -5.811505 -0.882206 -0.016009H -3.947783 -1.913589 0.076619C -6.462567 0.349622 -0.059331H -6.207762 2.487060 -0.072829H -6.389162 -1.801411 -0.029758H -7.545410 0.394884 -0.107467C 0.859969 -2.646598 0.894837C -0.440642 -2.202738 -1.078878C 0.109981 -3.798877 1.122844H 1.668014 -2.387284 1.569228C -1.191319 -3.360307 -0.854163H -0.627197 -1.613707 -1.975001C -0.920370 -4.159296 0.253625H 0.334212 -4.422087 1.981651H -1.974179 -3.637773 -1.551034H -1.497217 -5.059247 0.432469H 1.192668 -0.254233 -1.479892H 0.711594 0.362075 1.477108C 0.902200 2.016111 0.156039C 0.733985 2.968029 1.182481C 1.330568 2.502371 -1.092948C 0.964506 4.323207 0.971920H 0.417812 2.631272 2.166519C 1.563339 3.860344 -1.304868H 1.495721 1.815040 -1.915236C 1.380498 4.783756 -0.278061H 0.825693 5.022693 1.789762H 1.896714 4.195877 -2.281444H 1.564292 5.838769 -0.444641C 2.827860 -0.616184 -0.190099C 3.605174 -1.283838 -1.146381C 3.470300 -0.101700 0.938073C 4.977120 -1.444305 -0.976627H 3.127068 -1.684842 -2.035481C 4.845612 -0.263235 1.115492H 2.900882 0.445120 1.679444C 5.603854 -0.935837 0.161476H 5.557769 -1.962847 -1.731867H 5.324031 0.147966 1.997767H 6.672859 -1.056186 0.296890Mg -1.525847 0.178699 0.169276

S60

Products (Ph-Mg-Ph)

(1,1)-diphenylacetylene

B3LYP/6-311++G(d,p) optimized geometry (Å).

E = -1203.14078064E0 = -1202.768408H = -1202.744094G = -1202.826046

0 1C -0.523569 0.603924 0.138435C -1.158803 -0.598155 0.075613C 3.658597 0.555816 -0.049964C 4.531446 -0.546200 -0.155113C 4.265559 1.828595 -0.076850C 5.914151 -0.394853 -0.278976H 4.133327 -1.558727 -0.143130C 5.646763 1.995744 -0.198284H 3.655950 2.727062 -0.000667C 6.476383 0.880505 -0.300406H 6.552098 -1.269785 -0.358878H 6.074338 2.993514 -0.213621H 7.549996 1.003963 -0.395668C -0.320206 -1.836619 0.153079C -0.444066 -2.867453 -0.794926C 0.669650 -1.978755 1.146115C 0.413028 -3.961913 -0.778506H -1.210819 -2.793200 -1.557443C 1.529653 -3.083249 1.164613H 0.699318 -1.264148 1.965595C 1.409951 -4.072546 0.195331H 0.309597 -4.733751 -1.533339H 2.272317 -3.172867 1.949473H 2.072283 -4.930338 0.204189C -2.624754 -0.819212 -0.126313C -3.341488 -0.113204 -1.103620C -3.318716 -1.758556 0.652448C -4.704873 -0.328458 -1.286074H -2.823282 0.607135 -1.724339C -4.684876 -1.966497 0.479001H -2.784161 -2.325305 1.407257C -5.384229 -1.252005 -0.492600H -5.237381 0.225725 -2.051241H -5.202394 -2.688846 1.100906H -6.446551 -1.417064 -0.633435C -1.225206 1.903572 0.179177C -0.870363 2.936096 -0.707596C -2.203285 2.190137 1.149609C -1.488859 4.182578 -0.655493H -0.107155 2.750316 -1.458247C -2.806161 3.442830 1.217202H -2.486503 1.419070 1.856915C -2.459471 4.444752 0.310883H -1.205146 4.953445 -1.364042H -3.553051 3.637000 1.979734H -2.932648 5.418787 0.362217Mg 1.577695 0.341397 0.122254

(1,2)-diphenylacetylene

B3LYP/6-311++G(d,p) optimized geometry (Å).

E = -1203.14078064E0 = -1202.768408H = -1202.744094G = -1202.826046

0 1C -0.523569 0.603924 0.138435C -1.158803 -0.598155 0.075613C 3.658597 0.555816 -0.049964C 4.531446 -0.546200 -0.155113C 4.265559 1.828595 -0.076850C 5.914151 -0.394853 -0.278976H 4.133327 -1.558727 -0.143130C 5.646763 1.995744 -0.198284H 3.655950 2.727062 -0.000667C 6.476383 0.880505 -0.300406H 6.552098 -1.269785 -0.358878H 6.074338 2.993514 -0.213621H 7.549996 1.003963 -0.395668C -0.320206 -1.836619 0.153079C -0.444066 -2.867453 -0.794926C 0.669650 -1.978755 1.146115C 0.413028 -3.961913 -0.778506H -1.210819 -2.793200 -1.557443C 1.529653 -3.083249 1.164613H 0.699318 -1.264148 1.965595C 1.409951 -4.072546 0.195331H 0.309597 -4.733751 -1.533339H 2.272317 -3.172867 1.949473H 2.072283 -4.930338 0.204189C -2.624754 -0.819212 -0.126313C -3.341488 -0.113204 -1.103620C -3.318716 -1.758556 0.652448C -4.704873 -0.328458 -1.286074H -2.823282 0.607135 -1.724339C -4.684876 -1.966497 0.479001H -2.784161 -2.325305 1.407257C -5.384229 -1.252005 -0.492600H -5.237381 0.225725 -2.051241H -5.202394 -2.688846 1.100906H -6.446551 -1.417064 -0.633435C -1.225206 1.903572 0.179177C -0.870363 2.936096 -0.707596C -2.203285 2.190137 1.149609C -1.488859 4.182578 -0.655493H -0.107155 2.750316 -1.458247C -2.806161 3.442830 1.217202H -2.486503 1.419070 1.856915C -2.459471 4.444752 0.310883H -1.205146 4.953445 -1.364042H -3.553051 3.637000 1.979734H -2.932648 5.418787 0.362217Mg 1.577695 0.341397 0.122254

S61

Transition States (Et-Mg-Et)

(1,1)-trans-2-butene

B3LYP/6-311++G(d,p) optimized geometry (Å).

E = -515.757569541E0 = -515.528244H = -515.511656G = -515.573673

0 1C -2.756238 0.040987 0.252439C -1.664569 -0.603758 -0.334098H -3.760570 -0.396844 0.153421H -2.217420 0.428202 -0.885104C -2.673207 1.249341 1.143881H -3.467841 1.966705 0.925134H -2.819526 0.912294 2.175990H -1.701363 1.739686 1.074326C -1.972272 -1.867570 -1.094171H -1.520254 -2.687566 -0.525208H -3.041543 -2.085362 -1.221438H -1.480397 -1.883935 -2.069862C 1.569500 -1.887455 0.324201C 3.077119 -1.855862 0.647543H 1.404527 -2.543944 -0.545648H 1.037467 -2.390495 1.147871H 3.507968 -2.850980 0.832590H 3.657462 -1.410225 -0.168683H 3.287885 -1.253452 1.538984C 0.816330 2.122644 -0.237970C 2.218542 2.658199 -0.598548H 0.501674 2.590617 0.710318H 0.092319 2.500824 -0.979136H 2.269130 3.755150 -0.659683H 2.969900 2.350172 0.137519H 2.561820 2.275336 -1.566968Mg 0.585628 -0.012945 -0.057840

(1,2)-trans-2-butene

B3LYP/6-311++G(d,p) optimized geometry (Å).

E = -515.801156847E0 = -515.566227H = -515.550941G = -515.607489

0 1C 1.616345 -1.044069 -0.159193C 1.713864 0.360163 -0.399501H 1.704689 -1.658709 -1.057612H 2.228378 0.949589 0.355543C 2.224033 -1.651951 1.100705H 1.846558 -2.661020 1.289540H 3.319783 -1.726960 1.041708H 1.998167 -1.058040 1.992649C 1.921223 0.847854 -1.816084H 2.961423 0.654271 -2.105079H 1.290581 0.305815 -2.528090H 1.726939 1.914585 -1.932737C -2.515128 -1.169978 -0.244530C -3.576840 -0.065601 -0.414543H -2.746131 -1.763431 0.650956H -2.589250 -1.881875 -1.077840H -4.600471 -0.462141 -0.457467H -3.556236 0.655715 0.410578H -3.425581 0.509371 -1.335395C 0.005701 1.670535 0.201992C -0.212955 1.604395 1.716710H -0.782609 2.457077 2.106426H 0.742193 1.579663 2.250702H -0.774452 0.713279 2.047294H 0.629123 2.518422 -0.068601H -0.947210 1.812060 -0.337843Mg -0.506946 -0.513813 -0.096506

S62

Transition States (Et-Mg-Et)

(1,1)-2-butyne

B3LYP/6-311++G(d,p) optimized geometry (Å).

E = -514.524981637E0 = -514.316440H = -514.299825G = -514.361725

0 1C 2.404418 -0.477963 -0.069539C 1.174031 -0.287467 0.041167C 3.858429 -0.405164 -0.207263H 4.214743 -0.988358 -1.060428H 4.127148 0.641499 -0.368545H 4.364229 -0.751836 0.697694C -1.189703 2.480364 0.060101C 0.131605 3.275163 0.029264H -1.761464 2.773020 0.953905H -1.820544 2.801750 -0.782304H -0.010395 4.365796 0.056295H 0.777480 3.024812 0.880212H 0.714428 3.061144 -0.875687C -2.091870 -1.538974 -0.054595C -3.632967 -1.512540 -0.125009H -1.790337 -2.139168 0.820564H -1.712682 -2.110884 -0.919486H -4.091771 -2.511514 -0.161792H -4.067253 -1.000422 0.741579H -3.987797 -0.972311 -1.010478C 1.538855 -2.050174 0.288053H 1.445772 -2.226305 1.354652H 0.661043 -2.383197 -0.258203H 2.399584 -2.586115 -0.119008Mg -1.051580 0.341884 0.023163

(1,2)-2-butyne

B3LYP/6-311++G(d,p) optimized geometry (Å).

E = -514.563820123E0 = -514.352246H = -514.336896G = -514.394985

0 1C 1.404290 -1.184231 0.061558C 1.713314 0.012383 -0.201999C 2.114781 -2.478114 0.321454H 1.828815 -3.225458 -0.423591H 3.205709 -2.373182 0.300544H 1.827413 -2.885147 1.294391C 2.765996 1.015703 -0.455328H 3.732424 0.535612 -0.258548H 2.760783 1.360065 -1.491876H 2.682698 1.888447 0.194333C -2.598180 -1.151483 0.143098C -3.720841 -0.192895 -0.299343H -2.749773 -1.432252 1.194531H -2.679532 -2.094859 -0.413756H -4.724460 -0.618340 -0.160126H -3.700997 0.749254 0.260401H -3.639122 0.072692 -1.359747C -0.021487 1.691389 -0.434154C -0.076879 2.486639 0.873090H -0.341056 3.541276 0.716393H 0.883760 2.474809 1.398486H -0.819702 2.083809 1.572131H 0.642907 2.146132 -1.164743H -1.017654 1.697341 -0.915127Mg -0.614849 -0.426379 -0.066162

S63

Transition States (Et-Mg-Et)

(1,1)-E-stilbene

B3LYP/6-311++G(d,p) optimized geometry (Å).

E = -899.325224097E0 = -898.989554 H = -898.967028G = -899.044774

0 1C -0.277319 -1.617251 -0.260543C 0.596390 -0.524366 -0.084130H 0.139633 -2.625820 -0.372178H 0.087736 -0.884831 -1.255697C -0.262404 2.302336 2.101953C -1.308785 3.409932 2.348044H 0.702435 2.632327 2.518245H -0.524111 1.418671 2.703938H -1.418261 3.681853 3.408317H -1.056269 4.332406 1.812783H -2.307120 3.117242 1.998422C 0.226927 2.530331 -1.955353C -0.199121 4.000134 -2.148597H -0.389895 1.890106 -2.606599H 1.250683 2.404345 -2.342569H -0.134298 4.341838 -3.192203H -1.233941 4.167915 -1.828085H 0.421041 4.682767 -1.556143C 2.034023 -0.855273 -0.006002C 2.492057 -1.882567 0.838983C 2.982833 -0.087659 -0.705475C 3.853716 -2.135600 0.975018H 1.779346 -2.460084 1.418045C 4.340531 -0.368188 -0.594830H 2.644253 0.717145 -1.349149C 4.780629 -1.387663 0.250095H 4.191887 -2.917260 1.646004H 5.057884 0.219116 -1.156648H 5.840705 -1.590370 0.351251C -1.756526 -1.572462 -0.190775C -2.435399 -0.554776 0.493870C -2.495001 -2.596378 -0.802943C -3.826403 -0.550385 0.538402H -1.875954 0.208601 1.023881C -3.884731 -2.586820 -0.760564H -1.975160 -3.397756 -1.318244C -4.552532 -1.559872 -0.092878H -4.342563 0.235882 1.076752H -4.446299 -3.378311 -1.243054H -5.635908 -1.553260 -0.054790Mg 0.114239 1.748054 0.054339

(1,2)-E-stilbene

B3LYP/6-311++G(d,p) optimized geometry (Å).

E = -899.379366385E0 = -899.038187 H = -899.016839G = -899.089641

0 1C -0.192133 -0.910775 -0.665635C 0.763814 -0.581812 0.351313H 0.156359 -1.074177 -1.678468H 0.614190 -1.054134 1.318360C -1.748721 2.865667 -1.186730C -2.099370 4.017062 -0.222349H -2.650443 2.556928 -1.731510H -1.063114 3.237709 -1.960667H -2.516317 4.891636 -0.739893H -2.841773 3.712700 0.524253H -1.222661 4.371953 0.331961C 0.609666 1.326122 1.440658C 1.095557 0.860400 2.801503H 1.262714 1.698079 3.488027H 2.041382 0.318481 2.723023H 0.369773 0.194469 3.282878H 1.350224 1.946772 0.928290H -0.285276 1.956875 1.608818C -1.565811 -1.248772 -0.343423C -2.115320 -1.022623 0.948952C -2.458797 -1.730079 -1.339730C -3.466012 -1.274049 1.216512H -1.473315 -0.711451 1.766520C -3.788760 -1.979502 -1.057628H -2.075125 -1.912460 -2.338350C -4.311664 -1.749587 0.224581H -3.846329 -1.102390 2.217953H -4.435903 -2.358391 -1.841646H -5.356099 -1.945131 0.435260C 2.195977 -0.507536 -0.041169C 3.156675 -1.210560 0.698638C 2.626650 0.219521 -1.161282C 4.500181 -1.196901 0.328213H 2.844570 -1.789014 1.561396C 3.967646 0.237940 -1.530587H 1.909029 0.782021 -1.749740C 4.911610 -0.471015 -0.786769H 5.223853 -1.755035 0.911756H 4.278344 0.810343 -2.397561H 5.956780 -0.454569 -1.073892Mg -0.893999 1.151482 -0.303098

S64

Transition States (Et-Mg-Et)

(1,1)-diphenylacetylene

B3LYP/6-311++G(d,p) optimized geometry (Å).

E = -898.103464019E0 = -897.788529H = -897.766212G = -897.844556

0 1C -0.723862 -0.295717 -0.040627C 0.534486 -0.298914 0.060842C 2.482384 -3.245599 0.567888H 2.977528 -3.368001 1.543190H 3.097785 -3.832091 -0.130645C 4.048702 0.352128 -0.610768H 3.981387 1.183140 0.109366H 3.694008 0.787707 -1.558488C 1.072854 -3.860474 0.639068H 1.068297 -4.920560 0.934170H 0.437999 -3.333450 1.362475H 0.558461 -3.806898 -0.329342C 5.528594 -0.053654 -0.770611H 6.181928 0.775679 -1.080535H 5.945094 -0.446235 0.164683H 5.654068 -0.845830 -1.518362C -2.130241 -0.544925 -0.158295C -3.064604 0.481992 -0.358176C -2.566136 -1.880933 -0.079072C -4.415675 0.173978 -0.478952H -2.729085 1.509697 -0.413692C -3.918344 -2.172692 -0.208072H -1.843380 -2.671567 0.081032C -4.846210 -1.149753 -0.406740H -5.133393 0.971838 -0.630339H -4.248363 -3.203294 -0.148532H -5.900035 -1.384086 -0.502299C -0.109310 3.236047 1.579308C 0.009128 4.048540 0.449845C 0.169848 3.476662 -0.813969C 0.213433 2.095265 -0.953556C 0.110351 1.271013 0.182031C -0.062992 1.853601 1.450919H -0.233937 3.681844 2.559284H -0.021447 5.126963 0.554666H 0.265492 4.109076 -1.688813H 0.348042 1.640284 -1.927116H -0.148247 1.212819 2.320227Mg 2.671114 -1.175536 -0.000608

(1,2)-diphenylacetylene

B3LYP/6-311++G(d,p) optimized geometry (Å).

E = -898.133368254E0 = -897.815853H = -897.794476G = -897.869635

0 1C 0.689322 -0.059005 -0.165457C -0.552159 0.226014 -0.193907C -1.212735 2.576170 -0.493647C -1.863376 3.086851 0.788638H -1.936953 2.164005 -1.190366H -0.725995 3.413635 -1.030900H -2.635560 3.842860 0.590546H -2.352354 2.277426 1.338869H -1.138392 3.550737 1.467405C 2.515738 3.517775 -0.150005C 3.940411 3.027822 0.169322H 2.211892 4.271585 0.589967H 2.519683 4.053310 -1.110247H 4.675163 3.844292 0.198070H 3.991597 2.526255 1.142315H 4.300762 2.308675 -0.574879C -1.931080 -0.190190 -0.091488C -2.482933 -0.480223 1.168262C -2.721597 -0.380927 -1.238676C -3.786792 -0.956721 1.274405H -1.876818 -0.341988 2.055626C -4.021712 -0.858738 -1.125946H -2.303040 -0.160343 -2.213600C -4.559501 -1.145700 0.130045H -4.198562 -1.180507 2.252038H -4.618162 -1.009122 -2.018758H -5.575188 -1.515111 0.214256C 1.483580 -1.288888 -0.070936C 2.869914 -1.222066 0.134858C 0.888191 -2.558344 -0.189129C 3.636296 -2.381088 0.231617H 3.343770 -0.250609 0.220030C 1.655709 -3.714685 -0.102494H -0.180847 -2.630939 -0.351614C 3.032638 -3.631136 0.111450H 4.705589 -2.306789 0.395457H 1.179500 -4.684408 -0.198982H 3.628806 -4.534081 0.181066Mg 0.958802 2.079966 -0.256479

S65

Transition States (Ph-Mg-Ph)

(1,1)-trans-2-butene

B3LYP/6-311++G(d,p) optimized geometry (Å).

E = -820.690252622E0 = -820.408459H = -820.388933G = -820.459672

0 1C 0.743169 3.157192 0.536855C 0.050994 2.348873 -0.366514H 0.701419 4.249555 0.419758H 1.324084 2.528562 -0.475441C 1.472849 2.673723 1.758027H 2.415303 3.207411 1.900138H 0.843014 2.891587 2.627709H 1.663706 1.599901 1.724145C -0.702390 3.063206 -1.459722H -1.767334 2.881588 -1.277618H -0.540744 4.148629 -1.499318H -0.495400 2.632096 -2.442485C 1.881216 -0.744989 -0.138522C 2.214208 -1.931774 0.549663C 2.960206 -0.110022 -0.788824C 3.514184 -2.441291 0.596171H 1.437963 -2.488471 1.071812C 4.267370 -0.604016 -0.760815H 2.789993 0.804625 -1.360861C 4.548629 -1.776305 -0.061211H 3.720757 -3.357343 1.141813H 5.062222 -0.081282 -1.285256H 5.559882 -2.168382 -0.031707C -2.145645 -0.533223 -0.045364C -3.166107 0.352573 0.358996C -2.571092 -1.845828 -0.341870C -4.506272 -0.029304 0.463212H -2.920747 1.384173 0.612278C -3.905926 -2.247107 -0.248277H -1.843749 -2.591569 -0.658265C -4.880982 -1.336440 0.156589H -5.256278 0.688579 0.782894H -4.185692 -3.268588 -0.488939H -5.919394 -1.641835 0.232948Mg -0.102956 0.050763 -0.186997

(1,2)-trans-2-butene

B3LYP/6-311++G(d,p) optimized geometry (Å).

E = -820.728943695E0 = -820.442273H = -820.423765G = -820.490777

0 1C 1.110158 2.591739 -0.119736C 2.078501 1.733583 0.486360H 0.580266 3.226235 0.595532H 2.996509 1.564108 -0.068973C 1.409077 3.259421 -1.459491H 0.500620 3.622176 -1.948712H 2.081371 4.122913 -1.354870H 1.890983 2.569434 -2.159695C 2.272087 1.771352 1.984341H 2.766513 2.715565 2.240639H 1.320029 1.755720 2.524558H 2.891452 0.953107 2.350726C 1.768970 -0.382869 0.163227C 2.002926 -0.750124 -1.173437C 1.978122 -1.366964 1.144322C 2.399118 -2.042663 -1.527871H 1.893076 -0.011322 -1.968927C 2.385594 -2.657194 0.805812H 1.812772 -1.136451 2.193654C 2.596587 -2.996693 -0.532422H 2.565786 -2.298361 -2.569239H 2.535060 -3.401387 1.581703H 2.915960 -3.999213 -0.794878C -2.118550 0.126756 -0.007179C -3.201165 1.028520 -0.045051C -2.454776 -1.239386 0.078301C -4.530667 0.602621 -0.000588H -3.016241 2.098999 -0.111210C -3.779167 -1.680918 0.122538H -1.669075 -1.991349 0.111889C -4.823026 -0.757751 0.083145H -5.336586 1.329657 -0.031757H -3.996753 -2.742742 0.187794H -5.853727 -1.094987 0.117266Mg -0.120062 0.773442 -0.075761

S66

Transition States (Ph-Mg-Ph)

(1,1)-2-butyne

B3LYP/6-311++G(d,p) optimized geometry (Å).

E = -819.457269981E0 = -819.196292H = -819.176710G = -819.248335

0 1C 0.273863 3.357554 -0.051219C 0.171992 2.117073 0.045465C 0.135625 4.795933 -0.269364H 0.959455 5.195461 -0.866399H -0.797899 4.965820 -0.811178H 0.084794 5.339520 0.677598C 1.680372 2.655177 0.895721H 1.462148 2.668557 1.958753H 2.232759 1.764972 0.598282H 2.281894 3.518340 0.603680C 1.834223 -0.923740 -0.060511C 2.824181 -0.420292 -0.932613C 2.262989 -1.961523 0.794552C 4.135707 -0.904281 -0.957152H 2.573629 0.374218 -1.636938C 3.569672 -2.456240 0.790108H 1.559349 -2.412315 1.492483C 4.513780 -1.927019 -0.089034H 4.858490 -0.489798 -1.654260H 3.850919 -3.256671 1.468218H 5.529001 -2.309761 -0.100377C -2.218098 -0.628482 -0.055308C -2.687871 -1.944575 -0.250446C -3.217234 0.346820 0.144959C -4.046577 -2.268923 -0.247292H -1.977906 -2.753758 -0.412610C -4.580973 0.042566 0.152214H -2.932897 1.386267 0.304825C -5.000375 -1.272172 -0.044923H -4.361872 -3.296688 -0.401949H -5.315319 0.827171 0.311376H -6.057517 -1.517196 -0.040991Mg -0.154722 -0.137617 -0.056787

(1,2)-2-butyne

B3LYP/6-311++G(d,p) optimized geometry (Å).

E = -819.493678061E0 = -819.230491H = -819.211895G = -819.280469

0 1C 0.172999 3.997834 0.000721C 0.651233 2.577435 0.000232C 1.755829 1.967817 -0.000408C 3.232638 2.006354 -0.001359H 3.656473 1.525442 -0.883947H 3.526407 3.064163 -0.001518H 3.657646 1.525373 0.880626C 1.716013 -0.349667 -0.000042C 2.155679 -0.939980 1.199691C 2.970118 -2.073369 1.207065C 3.380704 -2.641252 0.000721C 2.969925 -2.074305 -1.206002C 2.155480 -0.940919 -1.199389H 1.861938 -0.513619 -2.156729H 3.285792 -2.513794 -2.146899H 4.018169 -3.518765 0.001011H 3.286142 -2.512116 2.148255H 1.862331 -0.511903 2.156746C -2.231217 -0.113273 -0.000158C -2.517159 -1.493498 -0.000936C -3.824357 -1.985894 -0.000986C -4.901847 -1.101569 -0.000243C -4.659702 0.271216 0.000540C -3.346822 0.748074 0.000572H -3.201909 1.826595 0.001178H -5.492098 0.968592 0.001123H -5.919466 -1.477988 -0.000272H -4.001904 -3.057137 -0.001599H -1.704436 -2.216974 -0.001510H 0.997215 4.719481 0.000060H -0.452636 4.190392 -0.874654H -0.451099 4.190254 0.877227Mg -0.250471 0.598498 0.000066

S67

Transition States (Ph-Mg-Ph)

(1,1)-E-stilbene

B3LYP/6-311++G(d,p) optimized geometry (Å).

E = -1204.25535567E0 = -1203.867514H = -1203.841872G = -1203.928988

0 1C -1.088183 0.586247 -1.911278C -0.290622 1.042558 -0.848051H -1.573696 1.311004 -2.574518H -1.541809 0.680732 -0.686300C -1.221046 -0.580073 2.095685C -1.469993 -1.805959 2.749804C -2.220610 0.402611 2.264645C -2.620965 -2.040959 3.505474H -0.745454 -2.615261 2.675662C -3.378374 0.188832 3.018711H -2.097600 1.387356 1.812531C -3.583070 -1.040609 3.641947H -2.767373 -3.001873 3.990277H -4.114891 0.980253 3.125444H -4.477921 -1.215970 4.230082C 2.568833 -0.762670 0.694437C 3.321933 -0.481688 -0.464994C 3.272788 -1.424562 1.723442C 4.668892 -0.830432 -0.598610H 2.853072 0.028896 -1.306472C 4.618902 -1.780341 1.610734H 2.762970 -1.675156 2.652091C 5.323280 -1.483574 0.444393H 5.206681 -0.593265 -1.512166H 5.118703 -2.287981 2.430595H 6.368979 -1.757554 0.349989C -0.166243 2.511847 -0.679690C 1.088287 3.004682 -0.284037C -1.209805 3.431062 -0.891451C 1.305623 4.374413 -0.154021H 1.900236 2.309157 -0.098653C -0.998728 4.795252 -0.725229H -2.202338 3.080353 -1.155259C 0.262911 5.272717 -0.367881H 2.286524 4.735600 0.132726H -1.819868 5.487870 -0.871846H 0.425943 6.337095 -0.243784C -1.273415 -0.825238 -2.314458C -2.410871 -1.174672 -3.057298C -0.328357 -1.813531 -2.004571C -2.619043 -2.491779 -3.450543H -3.137798 -0.411860 -3.316900C -0.536451 -3.129506 -2.404157H 0.589333 -1.550146 -1.490391C -1.683326 -3.471963 -3.119993H -3.506260 -2.753775 -4.014988H 0.203746 -3.884313 -2.166292H -1.841601 -4.498397 -3.430516Mg 0.509695 -0.244063 0.885885

(1,2)-E-stilbene

B3LYP/6-311++G(d,p) optimized geometry (Å).

E = -1204.30740315E0 = -1203.914836H = -1203.890226G = -1203.971873

0 1C -0.365386 1.723665 -0.657177C -1.458286 1.129183 0.047217H -0.419559 1.820901 -1.733532H -1.679280 1.558206 1.021498C -1.111044 -0.687553 1.048195C -1.361328 -0.667565 2.428346C -1.334986 -1.893119 0.363659C -1.779241 -1.809804 3.107963H -1.238267 0.255549 2.992760C -1.746919 -3.046235 1.034774H -1.206862 -1.943111 -0.716490C -1.970015 -3.003989 2.409535H -1.957486 -1.773020 4.177778H -1.907281 -3.967471 0.484599H -2.301812 -3.893004 2.934228C 2.482722 -1.193448 -0.515199C 3.624188 -0.603106 -1.094820C 2.510052 -2.596502 -0.389289C 4.718753 -1.357402 -1.523374H 3.673470 0.476495 -1.218436C 3.597985 -3.364496 -0.811703H 1.663589 -3.119137 0.052042C 4.708112 -2.744325 -1.382363H 5.579514 -0.864204 -1.965056H 3.580068 -4.444036 -0.695400H 5.556153 -3.335060 -1.712802C 0.730336 2.375429 0.024065C 1.716706 3.104681 -0.700508C 0.950419 2.231149 1.424848C 2.811888 3.660178 -0.069963H 1.586476 3.230815 -1.770202C 2.071130 2.798375 2.046902H 0.203277 1.750452 2.047381C 3.007166 3.509584 1.313663H 3.533496 4.220126 -0.655358H 2.195540 2.679487 3.117885H 3.874107 3.943578 1.796495C -2.693801 0.771887 -0.702774C -3.938401 0.893897 -0.070186C -2.666059 0.334778 -2.034604C -5.118923 0.603545 -0.747916H -3.979044 1.220205 0.963737C -3.844989 0.037018 -2.711637H -1.718653 0.221594 -2.548948C -5.077074 0.171414 -2.072313H -6.071194 0.712479 -0.240999H -3.801807 -0.300280 -3.741310H -5.994626 -0.059948 -2.601240Mg 0.837681 -0.054505 0.118277

S68

Transition States (Ph-Mg-Ph)

(1,1)-diphenylacetylene

B3LYP/6-311++G(d,p) optimized geometry (Å).

E = -1203.03503874E0 = -1202.667613H = -1202.642258G = -1202.729503

0 1C 1.559593 -0.547976 -0.031724C 0.311640 -0.415086 0.091745C 2.978191 -0.474874 -0.200510C 3.537636 0.801934 -0.399749C 3.804771 -1.607504 -0.172722C 4.911020 0.927696 -0.566621H 2.895613 1.674761 -0.418057C 5.177535 -1.462292 -0.342715H 3.369842 -2.586857 -0.019851C 5.733446 -0.199255 -0.539199H 5.339160 1.911425 -0.719438H 5.813643 -2.339430 -0.321226H 6.803880 -0.092320 -0.670731C 0.231965 -4.185848 -0.860801C 0.295671 -4.793497 0.394754C 0.477056 -4.019620 1.542725C 0.592431 -2.638622 1.440956C 0.510280 -2.019949 0.180938C 0.345362 -2.805672 -0.973411H 0.091094 -4.788305 -1.750457H 0.203750 -5.870243 0.478722H 0.526277 -4.493409 2.516114H 0.728514 -2.027173 2.324636H 0.289565 -2.322196 -1.941010C -3.372909 0.025676 -0.079061C -3.524353 -1.374704 -0.159540C -4.574479 0.765075 -0.113761C -4.771254 -1.996278 -0.267664H -2.644701 -2.015832 -0.135735C -5.830395 0.162827 -0.221898H -4.542429 1.851666 -0.052778C -5.932404 -1.225455 -0.300033H -4.838635 -3.079135 -0.325582H -6.727914 0.774141 -0.244584H -6.904498 -1.700532 -0.384022C -0.585222 2.925601 0.178406C -1.087491 4.038927 -0.527690C 0.566933 3.174978 0.953421C -0.489301 5.300801 -0.474774H -1.977589 3.931788 -1.145382C 1.176115 4.431119 1.026257H 1.011157 2.368805 1.537158C 0.648225 5.501744 0.305838H -0.911786 6.127520 -1.038538H 2.055675 4.577108 1.647385H 1.114207 6.480484 0.355629Mg -1.486266 0.989937 0.084062

(1,2)-diphenylacetylene

B3LYP/6-311++G(d,p) optimized geometry (Å).

E = -1203.06101907E0 = -1202.692040H = -1202.667349G = -1202.751143

0 1C -0.162272 1.232371 0.179797C -1.121949 0.421758 0.011490C -0.590418 -1.840152 0.319678C -1.035387 -2.776817 -0.631171C -1.549174 -4.014353 -0.249930C -1.643655 -4.344874 1.104475C -1.220303 -3.434545 2.070434C -0.710651 -2.194560 1.675604H -0.408996 -1.492444 2.452629H -1.293569 -3.684984 3.124025H -2.049444 -5.305584 1.402407H -1.877427 -4.723550 -1.003245H -0.990568 -2.540102 -1.691593C 3.200923 -0.823520 -0.201924C 3.708050 -2.090431 -0.555141C 5.072969 -2.323999 -0.738851C 5.986406 -1.285049 -0.568643C 5.523525 -0.018698 -0.214813C 4.155375 0.200045 -0.037841H 3.837050 1.201945 0.242113H 6.227136 0.796603 -0.075885H 7.047937 -1.460779 -0.708156H 5.423113 -3.314941 -1.011675H 3.029351 -2.929941 -0.691939C 0.026610 2.676673 0.297440C 1.181211 3.293355 -0.209470C -0.936149 3.479162 0.935924C 1.354648 4.671034 -0.109159H 1.939821 2.686963 -0.691567C -0.747096 4.852022 1.055471H -1.828832 3.016476 1.340273C 0.395158 5.455630 0.528522H 2.247717 5.129887 -0.518577H -1.497710 5.454274 1.555599H 0.537453 6.526481 0.618672C -2.489206 0.165176 -0.387589C -3.460361 -0.272355 0.527528C -2.873000 0.443992 -1.710119C -4.783655 -0.413812 0.129701H -3.166426 -0.508265 1.542487C -4.198988 0.290611 -2.104375H -2.127820 0.786916 -2.417963C -5.156755 -0.137574 -1.187147H -5.526748 -0.746228 0.845596H -4.483664 0.508825 -3.127446H -6.189162 -0.257262 -1.495451Mg 1.132971 -0.534236 0.060862

S69

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